Home / 29,666.72-40,891.20-21,055.88

Finding the Fourth Proportional to 29,666.72, 40,891.20 and 21,055.88

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Solution

The fourth proportional to 29,666.72, 40,891.20 and 21,055.88 is: 29,022.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,666.72 : 40,891.20 = 21,055.88 : x
  2. Step 2: Convert to fraction form
    29,666.72/40,891.20 = 21,055.88/x
  3. Step 3: Cross multiply
    29,666.72x = 40,891.20 × 21,055.88
  4. Step 4: Simplify right side
    29,666.72x = 861,000,223.52
  5. Step 5: Solve for x
    x = 861,000,223.52/29,666.72
  6. Step 6: Final answer
    x = 29,022.42

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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.