Home / 29,342.28-40,458.24-21,388.08

Finding the Fourth Proportional to 29,342.28, 40,458.24 and 21,388.08

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Solution

The fourth proportional to 29,342.28, 40,458.24 and 21,388.08 is: 29,490.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,342.28 : 40,458.24 = 21,388.08 : x
  2. Step 2: Convert to fraction form
    29,342.28/40,458.24 = 21,388.08/x
  3. Step 3: Cross multiply
    29,342.28x = 40,458.24 × 21,388.08
  4. Step 4: Simplify right side
    29,342.28x = 865,324,073.78
  5. Step 5: Solve for x
    x = 865,324,073.78/29,342.28
  6. Step 6: Final answer
    x = 29,490.69

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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.