Home / 28,899.20-43,359.60-11,381.24

Finding the Fourth Proportional to 28,899.20, 43,359.60 and 11,381.24

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Solution

The fourth proportional to 28,899.20, 43,359.60 and 11,381.24 is: 17,076.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,899.20 : 43,359.60 = 11,381.24 : x
  2. Step 2: Convert to fraction form
    28,899.20/43,359.60 = 11,381.24/x
  3. Step 3: Cross multiply
    28,899.20x = 43,359.60 × 11,381.24
  4. Step 4: Simplify right side
    28,899.20x = 493,486,013.90
  5. Step 5: Solve for x
    x = 493,486,013.90/28,899.20
  6. Step 6: Final answer
    x = 17,076.11

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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.