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Finding the Fourth Proportional to 19,998.78, 29,955.03 and 9,452.90

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Solution

The fourth proportional to 19,998.78, 29,955.03 and 9,452.90 is: 14,158.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,998.78 : 29,955.03 = 9,452.90 : x
  2. Step 2: Convert to fraction form
    19,998.78/29,955.03 = 9,452.90/x
  3. Step 3: Cross multiply
    19,998.78x = 29,955.03 × 9,452.90
  4. Step 4: Simplify right side
    19,998.78x = 283,161,753.31
  5. Step 5: Solve for x
    x = 283,161,753.31/19,998.78
  6. Step 6: Final answer
    x = 14,158.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.