Home / 20,508.25-30,741.36-15,567.43

Finding the Fourth Proportional to 20,508.25, 30,741.36 and 15,567.43

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Solution

The fourth proportional to 20,508.25, 30,741.36 and 15,567.43 is: 23,335.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,508.25 : 30,741.36 = 15,567.43 : x
  2. Step 2: Convert to fraction form
    20,508.25/30,741.36 = 15,567.43/x
  3. Step 3: Cross multiply
    20,508.25x = 30,741.36 × 15,567.43
  4. Step 4: Simplify right side
    20,508.25x = 478,563,969.90
  5. Step 5: Solve for x
    x = 478,563,969.90/20,508.25
  6. Step 6: Final answer
    x = 23,335.19

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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.