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Finding the Fourth Proportional to 28,404, 42,597.84 and 8,677.92

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Solution

The fourth proportional to 28,404, 42,597.84 and 8,677.92 is: 13,014.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,404 : 42,597.84 = 8,677.92 : x
  2. Step 2: Convert to fraction form
    28,404/42,597.84 = 8,677.92/x
  3. Step 3: Cross multiply
    28,404x = 42,597.84 × 8,677.92
  4. Step 4: Simplify right side
    28,404x = 369,660,647.69
  5. Step 5: Solve for x
    x = 369,660,647.69/28,404
  6. Step 6: Final answer
    x = 13,014.39

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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.