Home / 29,699.20-40,991.56-18,519.04

Finding the Fourth Proportional to 29,699.20, 40,991.56 and 18,519.04

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Solution

The fourth proportional to 29,699.20, 40,991.56 and 18,519.04 is: 25,560.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,699.20 : 40,991.56 = 18,519.04 : x
  2. Step 2: Convert to fraction form
    29,699.20/40,991.56 = 18,519.04/x
  3. Step 3: Cross multiply
    29,699.20x = 40,991.56 × 18,519.04
  4. Step 4: Simplify right side
    29,699.20x = 759,124,339.30
  5. Step 5: Solve for x
    x = 759,124,339.30/29,699.20
  6. Step 6: Final answer
    x = 25,560.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.