Home / 39,331.29-54,277.12-21,426.28

Finding the Fourth Proportional to 39,331.29, 54,277.12 and 21,426.28

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Solution

The fourth proportional to 39,331.29, 54,277.12 and 21,426.28 is: 29,568.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,331.29 : 54,277.12 = 21,426.28 : x
  2. Step 2: Convert to fraction form
    39,331.29/54,277.12 = 21,426.28/x
  3. Step 3: Cross multiply
    39,331.29x = 54,277.12 × 21,426.28
  4. Step 4: Simplify right side
    39,331.29x = 1,162,956,770.71
  5. Step 5: Solve for x
    x = 1,162,956,770.71/39,331.29
  6. Step 6: Final answer
    x = 29,568.23

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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.