Home / 31,424.33-47,136.50-9,237.71

Finding the Fourth Proportional to 31,424.33, 47,136.50 and 9,237.71

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Solution

The fourth proportional to 31,424.33, 47,136.50 and 9,237.71 is: 13,856.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,424.33 : 47,136.50 = 9,237.71 : x
  2. Step 2: Convert to fraction form
    31,424.33/47,136.50 = 9,237.71/x
  3. Step 3: Cross multiply
    31,424.33x = 47,136.50 × 9,237.71
  4. Step 4: Simplify right side
    31,424.33x = 435,433,035.54
  5. Step 5: Solve for x
    x = 435,433,035.54/31,424.33
  6. Step 6: Final answer
    x = 13,856.56

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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.