Home / 28,250.10-42,376.77-7,474.14

Finding the Fourth Proportional to 28,250.10, 42,376.77 and 7,474.14

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Solution

The fourth proportional to 28,250.10, 42,376.77 and 7,474.14 is: 11,211.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,250.10 : 42,376.77 = 7,474.14 : x
  2. Step 2: Convert to fraction form
    28,250.10/42,376.77 = 7,474.14/x
  3. Step 3: Cross multiply
    28,250.10x = 42,376.77 × 7,474.14
  4. Step 4: Simplify right side
    28,250.10x = 316,729,911.73
  5. Step 5: Solve for x
    x = 316,729,911.73/28,250.10
  6. Step 6: Final answer
    x = 11,211.64

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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.