Home / 31,914.60-47,871.92-15,270.72

Finding the Fourth Proportional to 31,914.60, 47,871.92 and 15,270.72

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Solution

The fourth proportional to 31,914.60, 47,871.92 and 15,270.72 is: 22,906.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,914.60 : 47,871.92 = 15,270.72 : x
  2. Step 2: Convert to fraction form
    31,914.60/47,871.92 = 15,270.72/x
  3. Step 3: Cross multiply
    31,914.60x = 47,871.92 × 15,270.72
  4. Step 4: Simplify right side
    31,914.60x = 731,038,686.18
  5. Step 5: Solve for x
    x = 731,038,686.18/31,914.60
  6. Step 6: Final answer
    x = 22,906.09

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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.