Home / 31,951.13-47,939.91-13,234.97

Finding the Fourth Proportional to 31,951.13, 47,939.91 and 13,234.97

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Solution

The fourth proportional to 31,951.13, 47,939.91 and 13,234.97 is: 19,857.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,951.13 : 47,939.91 = 13,234.97 : x
  2. Step 2: Convert to fraction form
    31,951.13/47,939.91 = 13,234.97/x
  3. Step 3: Cross multiply
    31,951.13x = 47,939.91 × 13,234.97
  4. Step 4: Simplify right side
    31,951.13x = 634,483,030.95
  5. Step 5: Solve for x
    x = 634,483,030.95/31,951.13
  6. Step 6: Final answer
    x = 19,857.92

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1.5x scale

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.