Home / 20,542.19-30,815.45-6,504.15

Finding the Fourth Proportional to 20,542.19, 30,815.45 and 6,504.15

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Solution

The fourth proportional to 20,542.19, 30,815.45 and 6,504.15 is: 9,756.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,542.19 : 30,815.45 = 6,504.15 : x
  2. Step 2: Convert to fraction form
    20,542.19/30,815.45 = 6,504.15/x
  3. Step 3: Cross multiply
    20,542.19x = 30,815.45 × 6,504.15
  4. Step 4: Simplify right side
    20,542.19x = 200,428,276.60
  5. Step 5: Solve for x
    x = 200,428,276.60/20,542.19
  6. Step 6: Final answer
    x = 9,756.91

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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.