Home / 31,731.15-47,602.13-10,949.79

Finding the Fourth Proportional to 31,731.15, 47,602.13 and 10,949.79

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Solution

The fourth proportional to 31,731.15, 47,602.13 and 10,949.79 is: 16,426.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,731.15 : 47,602.13 = 10,949.79 : x
  2. Step 2: Convert to fraction form
    31,731.15/47,602.13 = 10,949.79/x
  3. Step 3: Cross multiply
    31,731.15x = 47,602.13 × 10,949.79
  4. Step 4: Simplify right side
    31,731.15x = 521,233,272.30
  5. Step 5: Solve for x
    x = 521,233,272.30/31,731.15
  6. Step 6: Final answer
    x = 16,426.55

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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.