Home / 27,278.64-40,845-15,575.76

Finding the Fourth Proportional to 27,278.64, 40,845 and 15,575.76

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Solution

The fourth proportional to 27,278.64, 40,845 and 15,575.76 is: 23,321.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,278.64 : 40,845 = 15,575.76 : x
  2. Step 2: Convert to fraction form
    27,278.64/40,845 = 15,575.76/x
  3. Step 3: Cross multiply
    27,278.64x = 40,845 × 15,575.76
  4. Step 4: Simplify right side
    27,278.64x = 636,191,917.20
  5. Step 5: Solve for x
    x = 636,191,917.20/27,278.64
  6. Step 6: Final answer
    x = 23,321.98

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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.