Home / 20,559.27-30,853.13-8,079.21

Finding the Fourth Proportional to 20,559.27, 30,853.13 and 8,079.21

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Solution

The fourth proportional to 20,559.27, 30,853.13 and 8,079.21 is: 12,124.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.27 : 30,853.13 = 8,079.21 : x
  2. Step 2: Convert to fraction form
    20,559.27/30,853.13 = 8,079.21/x
  3. Step 3: Cross multiply
    20,559.27x = 30,853.13 × 8,079.21
  4. Step 4: Simplify right side
    20,559.27x = 249,268,876.03
  5. Step 5: Solve for x
    x = 249,268,876.03/20,559.27
  6. Step 6: Final answer
    x = 12,124.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.