Home / 20,197.50-30,296.40-7,049.88

Finding the Fourth Proportional to 20,197.50, 30,296.40 and 7,049.88

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Solution

The fourth proportional to 20,197.50, 30,296.40 and 7,049.88 is: 10,574.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,197.50 : 30,296.40 = 7,049.88 : x
  2. Step 2: Convert to fraction form
    20,197.50/30,296.40 = 7,049.88/x
  3. Step 3: Cross multiply
    20,197.50x = 30,296.40 × 7,049.88
  4. Step 4: Simplify right side
    20,197.50x = 213,586,060.17
  5. Step 5: Solve for x
    x = 213,586,060.17/20,197.50
  6. Step 6: Final answer
    x = 10,574.88

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1.5x scale

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.