Home / 42,931.92-64,397.56-13,349.70

Finding the Fourth Proportional to 42,931.92, 64,397.56 and 13,349.70

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Solution

The fourth proportional to 42,931.92, 64,397.56 and 13,349.70 is: 20,024.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,931.92 : 64,397.56 = 13,349.70 : x
  2. Step 2: Convert to fraction form
    42,931.92/64,397.56 = 13,349.70/x
  3. Step 3: Cross multiply
    42,931.92x = 64,397.56 × 13,349.70
  4. Step 4: Simplify right side
    42,931.92x = 859,688,106.73
  5. Step 5: Solve for x
    x = 859,688,106.73/42,931.92
  6. Step 6: Final answer
    x = 20,024.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.