Home / 28,330.88-42,503.04-8,610.56

Finding the Fourth Proportional to 28,330.88, 42,503.04 and 8,610.56

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Solution

The fourth proportional to 28,330.88, 42,503.04 and 8,610.56 is: 12,917.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,330.88 : 42,503.04 = 8,610.56 : x
  2. Step 2: Convert to fraction form
    28,330.88/42,503.04 = 8,610.56/x
  3. Step 3: Cross multiply
    28,330.88x = 42,503.04 × 8,610.56
  4. Step 4: Simplify right side
    28,330.88x = 365,974,976.10
  5. Step 5: Solve for x
    x = 365,974,976.10/28,330.88
  6. Step 6: Final answer
    x = 12,917.88

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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.