Home / 18,827.32-28,244.06-7,731.04

Finding the Fourth Proportional to 18,827.32, 28,244.06 and 7,731.04

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Solution

The fourth proportional to 18,827.32, 28,244.06 and 7,731.04 is: 11,597.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,827.32 : 28,244.06 = 7,731.04 : x
  2. Step 2: Convert to fraction form
    18,827.32/28,244.06 = 7,731.04/x
  3. Step 3: Cross multiply
    18,827.32x = 28,244.06 × 7,731.04
  4. Step 4: Simplify right side
    18,827.32x = 218,355,957.62
  5. Step 5: Solve for x
    x = 218,355,957.62/18,827.32
  6. Step 6: Final answer
    x = 11,597.82

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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.