Home / 38,107.36-52,581.36-21,337.12

Finding the Fourth Proportional to 38,107.36, 52,581.36 and 21,337.12

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Solution

The fourth proportional to 38,107.36, 52,581.36 and 21,337.12 is: 29,441.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,107.36 : 52,581.36 = 21,337.12 : x
  2. Step 2: Convert to fraction form
    38,107.36/52,581.36 = 21,337.12/x
  3. Step 3: Cross multiply
    38,107.36x = 52,581.36 × 21,337.12
  4. Step 4: Simplify right side
    38,107.36x = 1,121,934,788.08
  5. Step 5: Solve for x
    x = 1,121,934,788.08/38,107.36
  6. Step 6: Final answer
    x = 29,441.42

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Half scale
Find fourth proportional to 76,214.72, 105,162.72 and 42,674.24
Double scale
Find fourth proportional to 38,108.36, 52,582.74 and 21,338.12
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.