Home / 15,163.90-20,932.19-13,030.96

Finding the Fourth Proportional to 15,163.90, 20,932.19 and 13,030.96

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Solution

The fourth proportional to 15,163.90, 20,932.19 and 13,030.96 is: 17,987.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,163.90 : 20,932.19 = 13,030.96 : x
  2. Step 2: Convert to fraction form
    15,163.90/20,932.19 = 13,030.96/x
  3. Step 3: Cross multiply
    15,163.90x = 20,932.19 × 13,030.96
  4. Step 4: Simplify right side
    15,163.90x = 272,766,530.60
  5. Step 5: Solve for x
    x = 272,766,530.60/15,163.90
  6. Step 6: Final answer
    x = 17,987.89

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1.5x scale

Why These Related Problems?

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