Home / 31,845.83-47,769.17-12,125.47

Finding the Fourth Proportional to 31,845.83, 47,769.17 and 12,125.47

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Solution

The fourth proportional to 31,845.83, 47,769.17 and 12,125.47 is: 18,188.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,845.83 : 47,769.17 = 12,125.47 : x
  2. Step 2: Convert to fraction form
    31,845.83/47,769.17 = 12,125.47/x
  3. Step 3: Cross multiply
    31,845.83x = 47,769.17 × 12,125.47
  4. Step 4: Simplify right side
    31,845.83x = 579,223,637.76
  5. Step 5: Solve for x
    x = 579,223,637.76/31,845.83
  6. Step 6: Final answer
    x = 18,188.37

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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.