Home / 31,660.20-47,472.76-12,953.38

Finding the Fourth Proportional to 31,660.20, 47,472.76 and 12,953.38

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Solution

The fourth proportional to 31,660.20, 47,472.76 and 12,953.38 is: 19,422.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,660.20 : 47,472.76 = 12,953.38 : x
  2. Step 2: Convert to fraction form
    31,660.20/47,472.76 = 12,953.38/x
  3. Step 3: Cross multiply
    31,660.20x = 47,472.76 × 12,953.38
  4. Step 4: Simplify right side
    31,660.20x = 614,932,699.93
  5. Step 5: Solve for x
    x = 614,932,699.93/31,660.20
  6. Step 6: Final answer
    x = 19,422.89

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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.