Home / 20,812.52-28,753.62-17,450.12

Finding the Fourth Proportional to 20,812.52, 28,753.62 and 17,450.12

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Solution

The fourth proportional to 20,812.52, 28,753.62 and 17,450.12 is: 24,108.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,812.52 : 28,753.62 = 17,450.12 : x
  2. Step 2: Convert to fraction form
    20,812.52/28,753.62 = 17,450.12/x
  3. Step 3: Cross multiply
    20,812.52x = 28,753.62 × 17,450.12
  4. Step 4: Simplify right side
    20,812.52x = 501,754,119.43
  5. Step 5: Solve for x
    x = 501,754,119.43/20,812.52
  6. Step 6: Final answer
    x = 24,108.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.