Home / 28,254.20-42,381.30-7,194.20

Finding the Fourth Proportional to 28,254.20, 42,381.30 and 7,194.20

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Solution

The fourth proportional to 28,254.20, 42,381.30 and 7,194.20 is: 10,791.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,254.20 : 42,381.30 = 7,194.20 : x
  2. Step 2: Convert to fraction form
    28,254.20/42,381.30 = 7,194.20/x
  3. Step 3: Cross multiply
    28,254.20x = 42,381.30 × 7,194.20
  4. Step 4: Simplify right side
    28,254.20x = 304,899,548.46
  5. Step 5: Solve for x
    x = 304,899,548.46/28,254.20
  6. Step 6: Final answer
    x = 10,791.30

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Similar ratio
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1.5x scale

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.