Home / 20,610.18-28,441.62-11,658.06

Finding the Fourth Proportional to 20,610.18, 28,441.62 and 11,658.06

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Solution

The fourth proportional to 20,610.18, 28,441.62 and 11,658.06 is: 16,087.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,610.18 : 28,441.62 = 11,658.06 : x
  2. Step 2: Convert to fraction form
    20,610.18/28,441.62 = 11,658.06/x
  3. Step 3: Cross multiply
    20,610.18x = 28,441.62 × 11,658.06
  4. Step 4: Simplify right side
    20,610.18x = 331,574,112.46
  5. Step 5: Solve for x
    x = 331,574,112.46/20,610.18
  6. Step 6: Final answer
    x = 16,087.88

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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.