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Finding the Fourth Proportional to 28,734.40, 43,101.65 and 9,014.47

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Solution

The fourth proportional to 28,734.40, 43,101.65 and 9,014.47 is: 13,521.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,734.40 : 43,101.65 = 9,014.47 : x
  2. Step 2: Convert to fraction form
    28,734.40/43,101.65 = 9,014.47/x
  3. Step 3: Cross multiply
    28,734.40x = 43,101.65 × 9,014.47
  4. Step 4: Simplify right side
    28,734.40x = 388,538,485.80
  5. Step 5: Solve for x
    x = 388,538,485.80/28,734.40
  6. Step 6: Final answer
    x = 13,521.72

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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.