Home / 31,715.06-47,572.70-10,654.49

Finding the Fourth Proportional to 31,715.06, 47,572.70 and 10,654.49

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Solution

The fourth proportional to 31,715.06, 47,572.70 and 10,654.49 is: 15,981.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,715.06 : 47,572.70 = 10,654.49 : x
  2. Step 2: Convert to fraction form
    31,715.06/47,572.70 = 10,654.49/x
  3. Step 3: Cross multiply
    31,715.06x = 47,572.70 × 10,654.49
  4. Step 4: Simplify right side
    31,715.06x = 506,862,922.08
  5. Step 5: Solve for x
    x = 506,862,922.08/31,715.06
  6. Step 6: Final answer
    x = 15,981.78

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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.