Home / 21,489.26-32,050.18-18,873.97

Finding the Fourth Proportional to 21,489.26, 32,050.18 and 18,873.97

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Solution

The fourth proportional to 21,489.26, 32,050.18 and 18,873.97 is: 28,149.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,489.26 : 32,050.18 = 18,873.97 : x
  2. Step 2: Convert to fraction form
    21,489.26/32,050.18 = 18,873.97/x
  3. Step 3: Cross multiply
    21,489.26x = 32,050.18 × 18,873.97
  4. Step 4: Simplify right side
    21,489.26x = 604,914,135.81
  5. Step 5: Solve for x
    x = 604,914,135.81/21,489.26
  6. Step 6: Final answer
    x = 28,149.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.