Home / 31,543.18-47,300.92-11,807.89

Finding the Fourth Proportional to 31,543.18, 47,300.92 and 11,807.89

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Solution

The fourth proportional to 31,543.18, 47,300.92 and 11,807.89 is: 17,706.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,543.18 : 47,300.92 = 11,807.89 : x
  2. Step 2: Convert to fraction form
    31,543.18/47,300.92 = 11,807.89/x
  3. Step 3: Cross multiply
    31,543.18x = 47,300.92 × 11,807.89
  4. Step 4: Simplify right side
    31,543.18x = 558,524,060.26
  5. Step 5: Solve for x
    x = 558,524,060.26/31,543.18
  6. Step 6: Final answer
    x = 17,706.65

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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.