Home / 29,311.44-40,449.64-15,882.60

Finding the Fourth Proportional to 29,311.44, 40,449.64 and 15,882.60

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Solution

The fourth proportional to 29,311.44, 40,449.64 and 15,882.60 is: 21,917.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,311.44 : 40,449.64 = 15,882.60 : x
  2. Step 2: Convert to fraction form
    29,311.44/40,449.64 = 15,882.60/x
  3. Step 3: Cross multiply
    29,311.44x = 40,449.64 × 15,882.60
  4. Step 4: Simplify right side
    29,311.44x = 642,445,452.26
  5. Step 5: Solve for x
    x = 642,445,452.26/29,311.44
  6. Step 6: Final answer
    x = 21,917.91

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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.