Home / 20,567.20-30,854.04-7,422.79

Finding the Fourth Proportional to 20,567.20, 30,854.04 and 7,422.79

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Solution

The fourth proportional to 20,567.20, 30,854.04 and 7,422.79 is: 11,135.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,567.20 : 30,854.04 = 7,422.79 : x
  2. Step 2: Convert to fraction form
    20,567.20/30,854.04 = 7,422.79/x
  3. Step 3: Cross multiply
    20,567.20x = 30,854.04 × 7,422.79
  4. Step 4: Simplify right side
    20,567.20x = 229,023,059.57
  5. Step 5: Solve for x
    x = 229,023,059.57/20,567.20
  6. Step 6: Final answer
    x = 11,135.35

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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.