Home / 31,957.20-47,935.79-9,770.57

Finding the Fourth Proportional to 31,957.20, 47,935.79 and 9,770.57

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Solution

The fourth proportional to 31,957.20, 47,935.79 and 9,770.57 is: 14,655.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,957.20 : 47,935.79 = 9,770.57 : x
  2. Step 2: Convert to fraction form
    31,957.20/47,935.79 = 9,770.57/x
  3. Step 3: Cross multiply
    31,957.20x = 47,935.79 × 9,770.57
  4. Step 4: Simplify right side
    31,957.20x = 468,360,123.54
  5. Step 5: Solve for x
    x = 468,360,123.54/31,957.20
  6. Step 6: Final answer
    x = 14,655.86

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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.