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Finding the Fourth Proportional to 28,672.52, 43,008.77 and 8,952.63

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Solution

The fourth proportional to 28,672.52, 43,008.77 and 8,952.63 is: 13,428.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,672.52 : 43,008.77 = 8,952.63 : x
  2. Step 2: Convert to fraction form
    28,672.52/43,008.77 = 8,952.63/x
  3. Step 3: Cross multiply
    28,672.52x = 43,008.77 × 8,952.63
  4. Step 4: Simplify right side
    28,672.52x = 385,041,465.66
  5. Step 5: Solve for x
    x = 385,041,465.66/28,672.52
  6. Step 6: Final answer
    x = 13,428.94

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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.