Home / 21,176.57-31,771.78-15,248.60

Finding the Fourth Proportional to 21,176.57, 31,771.78 and 15,248.60

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Solution

The fourth proportional to 21,176.57, 31,771.78 and 15,248.60 is: 22,877.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,176.57 : 31,771.78 = 15,248.60 : x
  2. Step 2: Convert to fraction form
    21,176.57/31,771.78 = 15,248.60/x
  3. Step 3: Cross multiply
    21,176.57x = 31,771.78 × 15,248.60
  4. Step 4: Simplify right side
    21,176.57x = 484,475,265.39
  5. Step 5: Solve for x
    x = 484,475,265.39/21,176.57
  6. Step 6: Final answer
    x = 22,877.89

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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.