Home / 20,549.16-28,357.56-11,474.66

Finding the Fourth Proportional to 20,549.16, 28,357.56 and 11,474.66

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Solution

The fourth proportional to 20,549.16, 28,357.56 and 11,474.66 is: 15,834.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,549.16 : 28,357.56 = 11,474.66 : x
  2. Step 2: Convert to fraction form
    20,549.16/28,357.56 = 11,474.66/x
  3. Step 3: Cross multiply
    20,549.16x = 28,357.56 × 11,474.66
  4. Step 4: Simplify right side
    20,549.16x = 325,393,359.43
  5. Step 5: Solve for x
    x = 325,393,359.43/20,549.16
  6. Step 6: Final answer
    x = 15,834.87

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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.