Home / 15,131.32-22,682.40-10,189.90

Finding the Fourth Proportional to 15,131.32, 22,682.40 and 10,189.90

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Solution

The fourth proportional to 15,131.32, 22,682.40 and 10,189.90 is: 15,275.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,131.32 : 22,682.40 = 10,189.90 : x
  2. Step 2: Convert to fraction form
    15,131.32/22,682.40 = 10,189.90/x
  3. Step 3: Cross multiply
    15,131.32x = 22,682.40 × 10,189.90
  4. Step 4: Simplify right side
    15,131.32x = 231,131,387.76
  5. Step 5: Solve for x
    x = 231,131,387.76/15,131.32
  6. Step 6: Final answer
    x = 15,275.03

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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.