Home / 22,567.20-31,144.26-13,135.76

Finding the Fourth Proportional to 22,567.20, 31,144.26 and 13,135.76

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Solution

The fourth proportional to 22,567.20, 31,144.26 and 13,135.76 is: 18,128.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,567.20 : 31,144.26 = 13,135.76 : x
  2. Step 2: Convert to fraction form
    22,567.20/31,144.26 = 13,135.76/x
  3. Step 3: Cross multiply
    22,567.20x = 31,144.26 × 13,135.76
  4. Step 4: Simplify right side
    22,567.20x = 409,103,524.74
  5. Step 5: Solve for x
    x = 409,103,524.74/22,567.20
  6. Step 6: Final answer
    x = 18,128.24

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.