Home / 20,344.17-30,520.91-7,864.29

Finding the Fourth Proportional to 20,344.17, 30,520.91 and 7,864.29

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Solution

The fourth proportional to 20,344.17, 30,520.91 and 7,864.29 is: 11,798.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,344.17 : 30,520.91 = 7,864.29 : x
  2. Step 2: Convert to fraction form
    20,344.17/30,520.91 = 7,864.29/x
  3. Step 3: Cross multiply
    20,344.17x = 30,520.91 × 7,864.29
  4. Step 4: Simplify right side
    20,344.17x = 240,025,324.28
  5. Step 5: Solve for x
    x = 240,025,324.28/20,344.17
  6. Step 6: Final answer
    x = 11,798.24

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1.5x scale

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.