Home / 20,519.28-28,300.50-14,854.86

Finding the Fourth Proportional to 20,519.28, 28,300.50 and 14,854.86

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Solution

The fourth proportional to 20,519.28, 28,300.50 and 14,854.86 is: 20,488.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,519.28 : 28,300.50 = 14,854.86 : x
  2. Step 2: Convert to fraction form
    20,519.28/28,300.50 = 14,854.86/x
  3. Step 3: Cross multiply
    20,519.28x = 28,300.50 × 14,854.86
  4. Step 4: Simplify right side
    20,519.28x = 420,399,965.43
  5. Step 5: Solve for x
    x = 420,399,965.43/20,519.28
  6. Step 6: Final answer
    x = 20,488.05

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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.