Home / 20,567.55-30,859.56-8,090.73

Finding the Fourth Proportional to 20,567.55, 30,859.56 and 8,090.73

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Solution

The fourth proportional to 20,567.55, 30,859.56 and 8,090.73 is: 12,139.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,567.55 : 30,859.56 = 8,090.73 : x
  2. Step 2: Convert to fraction form
    20,567.55/30,859.56 = 8,090.73/x
  3. Step 3: Cross multiply
    20,567.55x = 30,859.56 × 8,090.73
  4. Step 4: Simplify right side
    20,567.55x = 249,676,367.88
  5. Step 5: Solve for x
    x = 249,676,367.88/20,567.55
  6. Step 6: Final answer
    x = 12,139.33

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Double scale
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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.