Home / 29,099.28-40,138.56-20,040.24

Finding the Fourth Proportional to 29,099.28, 40,138.56 and 20,040.24

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Solution

The fourth proportional to 29,099.28, 40,138.56 and 20,040.24 is: 27,642.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,099.28 : 40,138.56 = 20,040.24 : x
  2. Step 2: Convert to fraction form
    29,099.28/40,138.56 = 20,040.24/x
  3. Step 3: Cross multiply
    29,099.28x = 40,138.56 × 20,040.24
  4. Step 4: Simplify right side
    29,099.28x = 804,386,375.65
  5. Step 5: Solve for x
    x = 804,386,375.65/29,099.28
  6. Step 6: Final answer
    x = 27,642.83

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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.