Home / 20,568.17-30,854.61-8,086.55

Finding the Fourth Proportional to 20,568.17, 30,854.61 and 8,086.55

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Solution

The fourth proportional to 20,568.17, 30,854.61 and 8,086.55 is: 12,130.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,568.17 : 30,854.61 = 8,086.55 : x
  2. Step 2: Convert to fraction form
    20,568.17/30,854.61 = 8,086.55/x
  3. Step 3: Cross multiply
    20,568.17x = 30,854.61 × 8,086.55
  4. Step 4: Simplify right side
    20,568.17x = 249,507,192.22
  5. Step 5: Solve for x
    x = 249,507,192.22/20,568.17
  6. Step 6: Final answer
    x = 12,130.75

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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.