Home / 20,610.66-28,441.93-11,179.02

Finding the Fourth Proportional to 20,610.66, 28,441.93 and 11,179.02

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Solution

The fourth proportional to 20,610.66, 28,441.93 and 11,179.02 is: 15,426.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,610.66 : 28,441.93 = 11,179.02 : x
  2. Step 2: Convert to fraction form
    20,610.66/28,441.93 = 11,179.02/x
  3. Step 3: Cross multiply
    20,610.66x = 28,441.93 × 11,179.02
  4. Step 4: Simplify right side
    20,610.66x = 317,952,904.31
  5. Step 5: Solve for x
    x = 317,952,904.31/20,610.66
  6. Step 6: Final answer
    x = 15,426.62

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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.