Home / 28,192.01-42,288.30-11,540.43

Finding the Fourth Proportional to 28,192.01, 42,288.30 and 11,540.43

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Solution

The fourth proportional to 28,192.01, 42,288.30 and 11,540.43 is: 17,310.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,192.01 : 42,288.30 = 11,540.43 : x
  2. Step 2: Convert to fraction form
    28,192.01/42,288.30 = 11,540.43/x
  3. Step 3: Cross multiply
    28,192.01x = 42,288.30 × 11,540.43
  4. Step 4: Simplify right side
    28,192.01x = 488,025,165.97
  5. Step 5: Solve for x
    x = 488,025,165.97/28,192.01
  6. Step 6: Final answer
    x = 17,310.76

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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.