Home / 20,799.26-28,716.38-18,557.24

Finding the Fourth Proportional to 20,799.26, 28,716.38 and 18,557.24

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Solution

The fourth proportional to 20,799.26, 28,716.38 and 18,557.24 is: 25,620.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,799.26 : 28,716.38 = 18,557.24 : x
  2. Step 2: Convert to fraction form
    20,799.26/28,716.38 = 18,557.24/x
  3. Step 3: Cross multiply
    20,799.26x = 28,716.38 × 18,557.24
  4. Step 4: Simplify right side
    20,799.26x = 532,896,827.38
  5. Step 5: Solve for x
    x = 532,896,827.38/20,799.26
  6. Step 6: Final answer
    x = 25,620.96

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1.5x scale

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.