Home / 39,437.28-54,423.61-21,532.68

Finding the Fourth Proportional to 39,437.28, 54,423.61 and 21,532.68

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Solution

The fourth proportional to 39,437.28, 54,423.61 and 21,532.68 is: 29,715.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,437.28 : 54,423.61 = 21,532.68 : x
  2. Step 2: Convert to fraction form
    39,437.28/54,423.61 = 21,532.68/x
  3. Step 3: Cross multiply
    39,437.28x = 54,423.61 × 21,532.68
  4. Step 4: Simplify right side
    39,437.28x = 1,171,886,124.74
  5. Step 5: Solve for x
    x = 1,171,886,124.74/39,437.28
  6. Step 6: Final answer
    x = 29,715.19

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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.