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Finding the Fourth Proportional to 29,551.17, 40,808.23 and 18,959.21

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Solution

The fourth proportional to 29,551.17, 40,808.23 and 18,959.21 is: 26,181.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,551.17 : 40,808.23 = 18,959.21 : x
  2. Step 2: Convert to fraction form
    29,551.17/40,808.23 = 18,959.21/x
  3. Step 3: Cross multiply
    29,551.17x = 40,808.23 × 18,959.21
  4. Step 4: Simplify right side
    29,551.17x = 773,691,550.86
  5. Step 5: Solve for x
    x = 773,691,550.86/29,551.17
  6. Step 6: Final answer
    x = 26,181.42

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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.