Home / 31,627.90-47,343.42-19,916.52

Finding the Fourth Proportional to 31,627.90, 47,343.42 and 19,916.52

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Solution

The fourth proportional to 31,627.90, 47,343.42 and 19,916.52 is: 29,812.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,627.90 : 47,343.42 = 19,916.52 : x
  2. Step 2: Convert to fraction form
    31,627.90/47,343.42 = 19,916.52/x
  3. Step 3: Cross multiply
    31,627.90x = 47,343.42 × 19,916.52
  4. Step 4: Simplify right side
    31,627.90x = 942,916,171.30
  5. Step 5: Solve for x
    x = 942,916,171.30/31,627.90
  6. Step 6: Final answer
    x = 29,812.80

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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.