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Finding the Fourth Proportional to 16,658.88, 25,001.28 and 15,625.32

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Solution

The fourth proportional to 16,658.88, 25,001.28 and 15,625.32 is: 23,450.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,658.88 : 25,001.28 = 15,625.32 : x
  2. Step 2: Convert to fraction form
    16,658.88/25,001.28 = 15,625.32/x
  3. Step 3: Cross multiply
    16,658.88x = 25,001.28 × 15,625.32
  4. Step 4: Simplify right side
    16,658.88x = 390,653,000.41
  5. Step 5: Solve for x
    x = 390,653,000.41/16,658.88
  6. Step 6: Final answer
    x = 23,450.14

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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.