Home / 15,719.10-23,542.20-10,761.90

Finding the Fourth Proportional to 15,719.10, 23,542.20 and 10,761.90

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Solution

The fourth proportional to 15,719.10, 23,542.20 and 10,761.90 is: 16,117.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,719.10 : 23,542.20 = 10,761.90 : x
  2. Step 2: Convert to fraction form
    15,719.10/23,542.20 = 10,761.90/x
  3. Step 3: Cross multiply
    15,719.10x = 23,542.20 × 10,761.90
  4. Step 4: Simplify right side
    15,719.10x = 253,358,802.18
  5. Step 5: Solve for x
    x = 253,358,802.18/15,719.10
  6. Step 6: Final answer
    x = 16,117.89

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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.