Home / 31,721.20-47,585.04-10,942

Finding the Fourth Proportional to 31,721.20, 47,585.04 and 10,942

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Solution

The fourth proportional to 31,721.20, 47,585.04 and 10,942 is: 16,414.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,721.20 : 47,585.04 = 10,942 : x
  2. Step 2: Convert to fraction form
    31,721.20/47,585.04 = 10,942/x
  3. Step 3: Cross multiply
    31,721.20x = 47,585.04 × 10,942
  4. Step 4: Simplify right side
    31,721.20x = 520,675,507.68
  5. Step 5: Solve for x
    x = 520,675,507.68/31,721.20
  6. Step 6: Final answer
    x = 16,414.12

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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.