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Finding the Fourth Proportional to 25,928, 38,897.76 and 9,512

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Solution

The fourth proportional to 25,928, 38,897.76 and 9,512 is: 14,270.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,928 : 38,897.76 = 9,512 : x
  2. Step 2: Convert to fraction form
    25,928/38,897.76 = 9,512/x
  3. Step 3: Cross multiply
    25,928x = 38,897.76 × 9,512
  4. Step 4: Simplify right side
    25,928x = 369,995,493.12
  5. Step 5: Solve for x
    x = 369,995,493.12/25,928
  6. Step 6: Final answer
    x = 14,270.11

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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.