Home / 38,166.13-52,669.28-21,169.81

Finding the Fourth Proportional to 38,166.13, 52,669.28 and 21,169.81

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Solution

The fourth proportional to 38,166.13, 52,669.28 and 21,169.81 is: 29,214.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,166.13 : 52,669.28 = 21,169.81 : x
  2. Step 2: Convert to fraction form
    38,166.13/52,669.28 = 21,169.81/x
  3. Step 3: Cross multiply
    38,166.13x = 52,669.28 × 21,169.81
  4. Step 4: Simplify right side
    38,166.13x = 1,114,998,281.24
  5. Step 5: Solve for x
    x = 1,114,998,281.24/38,166.13
  6. Step 6: Final answer
    x = 29,214.34

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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.