Home / 20,229.86-27,930.18-13,062.98

Finding the Fourth Proportional to 20,229.86, 27,930.18 and 13,062.98

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Solution

The fourth proportional to 20,229.86, 27,930.18 and 13,062.98 is: 18,035.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,229.86 : 27,930.18 = 13,062.98 : x
  2. Step 2: Convert to fraction form
    20,229.86/27,930.18 = 13,062.98/x
  3. Step 3: Cross multiply
    20,229.86x = 27,930.18 × 13,062.98
  4. Step 4: Simplify right side
    20,229.86x = 364,851,382.74
  5. Step 5: Solve for x
    x = 364,851,382.74/20,229.86
  6. Step 6: Final answer
    x = 18,035.29

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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.