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Finding the Fourth Proportional to 30,248.88, 45,373.32 and 9,474

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Solution

The fourth proportional to 30,248.88, 45,373.32 and 9,474 is: 14,211

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,248.88 : 45,373.32 = 9,474 : x
  2. Step 2: Convert to fraction form
    30,248.88/45,373.32 = 9,474/x
  3. Step 3: Cross multiply
    30,248.88x = 45,373.32 × 9,474
  4. Step 4: Simplify right side
    30,248.88x = 429,866,833.68
  5. Step 5: Solve for x
    x = 429,866,833.68/30,248.88
  6. Step 6: Final answer
    x = 14,211

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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.