Home / 18,727.12-25,877.64-17,815.96

Finding the Fourth Proportional to 18,727.12, 25,877.64 and 17,815.96

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Solution

The fourth proportional to 18,727.12, 25,877.64 and 17,815.96 is: 24,618.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,727.12 : 25,877.64 = 17,815.96 : x
  2. Step 2: Convert to fraction form
    18,727.12/25,877.64 = 17,815.96/x
  3. Step 3: Cross multiply
    18,727.12x = 25,877.64 × 17,815.96
  4. Step 4: Simplify right side
    18,727.12x = 461,034,999.13
  5. Step 5: Solve for x
    x = 461,034,999.13/18,727.12
  6. Step 6: Final answer
    x = 24,618.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.