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Finding the Fourth Proportional to 29,008.88, 40,018.02 and 18,932.66

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Solution

The fourth proportional to 29,008.88, 40,018.02 and 18,932.66 is: 26,117.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,008.88 : 40,018.02 = 18,932.66 : x
  2. Step 2: Convert to fraction form
    29,008.88/40,018.02 = 18,932.66/x
  3. Step 3: Cross multiply
    29,008.88x = 40,018.02 × 18,932.66
  4. Step 4: Simplify right side
    29,008.88x = 757,647,566.53
  5. Step 5: Solve for x
    x = 757,647,566.53/29,008.88
  6. Step 6: Final answer
    x = 26,117.78

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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.