Home / 39,298.54-54,231.42-21,393.68

Finding the Fourth Proportional to 39,298.54, 54,231.42 and 21,393.68

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Solution

The fourth proportional to 39,298.54, 54,231.42 and 21,393.68 is: 29,522.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,298.54 : 54,231.42 = 21,393.68 : x
  2. Step 2: Convert to fraction form
    39,298.54/54,231.42 = 21,393.68/x
  3. Step 3: Cross multiply
    39,298.54x = 54,231.42 × 21,393.68
  4. Step 4: Simplify right side
    39,298.54x = 1,160,209,645.43
  5. Step 5: Solve for x
    x = 1,160,209,645.43/39,298.54
  6. Step 6: Final answer
    x = 29,522.97

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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.