Home / 20,732.49-31,098.60-5,150.07

Finding the Fourth Proportional to 20,732.49, 31,098.60 and 5,150.07

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Solution

The fourth proportional to 20,732.49, 31,098.60 and 5,150.07 is: 7,725.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732.49 : 31,098.60 = 5,150.07 : x
  2. Step 2: Convert to fraction form
    20,732.49/31,098.60 = 5,150.07/x
  3. Step 3: Cross multiply
    20,732.49x = 31,098.60 × 5,150.07
  4. Step 4: Simplify right side
    20,732.49x = 160,159,966.90
  5. Step 5: Solve for x
    x = 160,159,966.90/20,732.49
  6. Step 6: Final answer
    x = 7,725.07

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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.