Home / 31,660.17-47,487.79-12,935.22

Finding the Fourth Proportional to 31,660.17, 47,487.79 and 12,935.22

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Solution

The fourth proportional to 31,660.17, 47,487.79 and 12,935.22 is: 19,401.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,660.17 : 47,487.79 = 12,935.22 : x
  2. Step 2: Convert to fraction form
    31,660.17/47,487.79 = 12,935.22/x
  3. Step 3: Cross multiply
    31,660.17x = 47,487.79 × 12,935.22
  4. Step 4: Simplify right side
    31,660.17x = 614,265,010.96
  5. Step 5: Solve for x
    x = 614,265,010.96/31,660.17
  6. Step 6: Final answer
    x = 19,401.82

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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.