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Finding the Fourth Proportional to 25,603.98, 38,398.46 and 8,960.91

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Solution

The fourth proportional to 25,603.98, 38,398.46 and 8,960.91 is: 13,438.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,603.98 : 38,398.46 = 8,960.91 : x
  2. Step 2: Convert to fraction form
    25,603.98/38,398.46 = 8,960.91/x
  3. Step 3: Cross multiply
    25,603.98x = 38,398.46 × 8,960.91
  4. Step 4: Simplify right side
    25,603.98x = 344,085,099.39
  5. Step 5: Solve for x
    x = 344,085,099.39/25,603.98
  6. Step 6: Final answer
    x = 13,438.73

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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.