Home / 28,100.86-42,151.29-8,393.25

Finding the Fourth Proportional to 28,100.86, 42,151.29 and 8,393.25

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Solution

The fourth proportional to 28,100.86, 42,151.29 and 8,393.25 is: 12,589.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,100.86 : 42,151.29 = 8,393.25 : x
  2. Step 2: Convert to fraction form
    28,100.86/42,151.29 = 8,393.25/x
  3. Step 3: Cross multiply
    28,100.86x = 42,151.29 × 8,393.25
  4. Step 4: Simplify right side
    28,100.86x = 353,786,441.39
  5. Step 5: Solve for x
    x = 353,786,441.39/28,100.86
  6. Step 6: Final answer
    x = 12,589.88

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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.