Home / 20,892.30-31,348.68-10,363.32

Finding the Fourth Proportional to 20,892.30, 31,348.68 and 10,363.32

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Solution

The fourth proportional to 20,892.30, 31,348.68 and 10,363.32 is: 15,550.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,892.30 : 31,348.68 = 10,363.32 : x
  2. Step 2: Convert to fraction form
    20,892.30/31,348.68 = 10,363.32/x
  3. Step 3: Cross multiply
    20,892.30x = 31,348.68 × 10,363.32
  4. Step 4: Simplify right side
    20,892.30x = 324,876,402.42
  5. Step 5: Solve for x
    x = 324,876,402.42/20,892.30
  6. Step 6: Final answer
    x = 15,550.05

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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.