Home / 28,493.56-42,744.36-8,773.72

Finding the Fourth Proportional to 28,493.56, 42,744.36 and 8,773.72

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Solution

The fourth proportional to 28,493.56, 42,744.36 and 8,773.72 is: 13,161.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,493.56 : 42,744.36 = 8,773.72 : x
  2. Step 2: Convert to fraction form
    28,493.56/42,744.36 = 8,773.72/x
  3. Step 3: Cross multiply
    28,493.56x = 42,744.36 × 8,773.72
  4. Step 4: Simplify right side
    28,493.56x = 375,027,046.22
  5. Step 5: Solve for x
    x = 375,027,046.22/28,493.56
  6. Step 6: Final answer
    x = 13,161.82

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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.