Home / 20,422.98-28,162.35-16,167.24

Finding the Fourth Proportional to 20,422.98, 28,162.35 and 16,167.24

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Solution

The fourth proportional to 20,422.98, 28,162.35 and 16,167.24 is: 22,293.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,422.98 : 28,162.35 = 16,167.24 : x
  2. Step 2: Convert to fraction form
    20,422.98/28,162.35 = 16,167.24/x
  3. Step 3: Cross multiply
    20,422.98x = 28,162.35 × 16,167.24
  4. Step 4: Simplify right side
    20,422.98x = 455,307,471.41
  5. Step 5: Solve for x
    x = 455,307,471.41/20,422.98
  6. Step 6: Final answer
    x = 22,293.88

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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.