Home / 28,677.65-43,016.45-8,957.90

Finding the Fourth Proportional to 28,677.65, 43,016.45 and 8,957.90

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Solution

The fourth proportional to 28,677.65, 43,016.45 and 8,957.90 is: 13,436.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,677.65 : 43,016.45 = 8,957.90 : x
  2. Step 2: Convert to fraction form
    28,677.65/43,016.45 = 8,957.90/x
  3. Step 3: Cross multiply
    28,677.65x = 43,016.45 × 8,957.90
  4. Step 4: Simplify right side
    28,677.65x = 385,336,797.58
  5. Step 5: Solve for x
    x = 385,336,797.58/28,677.65
  6. Step 6: Final answer
    x = 13,436.84

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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.