Home / 28,647.20-42,944.88-10,174.88

Finding the Fourth Proportional to 28,647.20, 42,944.88 and 10,174.88

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Solution

The fourth proportional to 28,647.20, 42,944.88 and 10,174.88 is: 15,253.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,647.20 : 42,944.88 = 10,174.88 : x
  2. Step 2: Convert to fraction form
    28,647.20/42,944.88 = 10,174.88/x
  3. Step 3: Cross multiply
    28,647.20x = 42,944.88 × 10,174.88
  4. Step 4: Simplify right side
    28,647.20x = 436,959,000.61
  5. Step 5: Solve for x
    x = 436,959,000.61/28,647.20
  6. Step 6: Final answer
    x = 15,253.11

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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.