Home / 18,824.13-28,238.65-5,677.83

Finding the Fourth Proportional to 18,824.13, 28,238.65 and 5,677.83

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Solution

The fourth proportional to 18,824.13, 28,238.65 and 5,677.83 is: 8,517.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,824.13 : 28,238.65 = 5,677.83 : x
  2. Step 2: Convert to fraction form
    18,824.13/28,238.65 = 5,677.83/x
  3. Step 3: Cross multiply
    18,824.13x = 28,238.65 × 5,677.83
  4. Step 4: Simplify right side
    18,824.13x = 160,334,239.93
  5. Step 5: Solve for x
    x = 160,334,239.93/18,824.13
  6. Step 6: Final answer
    x = 8,517.48

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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.