Home / 20,508.75-30,742.11-15,567.93

Finding the Fourth Proportional to 20,508.75, 30,742.11 and 15,567.93

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Solution

The fourth proportional to 20,508.75, 30,742.11 and 15,567.93 is: 23,335.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,508.75 : 30,742.11 = 15,567.93 : x
  2. Step 2: Convert to fraction form
    20,508.75/30,742.11 = 15,567.93/x
  3. Step 3: Cross multiply
    20,508.75x = 30,742.11 × 15,567.93
  4. Step 4: Simplify right side
    20,508.75x = 478,591,016.53
  5. Step 5: Solve for x
    x = 478,591,016.53/20,508.75
  6. Step 6: Final answer
    x = 23,335.94

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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.