Home / 28,046.86-38,704.80-15,471.61

Finding the Fourth Proportional to 28,046.86, 38,704.80 and 15,471.61

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Solution

The fourth proportional to 28,046.86, 38,704.80 and 15,471.61 is: 21,350.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,046.86 : 38,704.80 = 15,471.61 : x
  2. Step 2: Convert to fraction form
    28,046.86/38,704.80 = 15,471.61/x
  3. Step 3: Cross multiply
    28,046.86x = 38,704.80 × 15,471.61
  4. Step 4: Simplify right side
    28,046.86x = 598,825,570.73
  5. Step 5: Solve for x
    x = 598,825,570.73/28,046.86
  6. Step 6: Final answer
    x = 21,350.90

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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.