Home / 20,542.28-30,818.04-6,503.15

Finding the Fourth Proportional to 20,542.28, 30,818.04 and 6,503.15

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Solution

The fourth proportional to 20,542.28, 30,818.04 and 6,503.15 is: 9,756.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,542.28 : 30,818.04 = 6,503.15 : x
  2. Step 2: Convert to fraction form
    20,542.28/30,818.04 = 6,503.15/x
  3. Step 3: Cross multiply
    20,542.28x = 30,818.04 × 6,503.15
  4. Step 4: Simplify right side
    20,542.28x = 200,414,320.57
  5. Step 5: Solve for x
    x = 200,414,320.57/20,542.28
  6. Step 6: Final answer
    x = 9,756.19

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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.