Home / 20,206.60-30,309.90-7,060.30

Finding the Fourth Proportional to 20,206.60, 30,309.90 and 7,060.30

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Solution

The fourth proportional to 20,206.60, 30,309.90 and 7,060.30 is: 10,590.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,206.60 : 30,309.90 = 7,060.30 : x
  2. Step 2: Convert to fraction form
    20,206.60/30,309.90 = 7,060.30/x
  3. Step 3: Cross multiply
    20,206.60x = 30,309.90 × 7,060.30
  4. Step 4: Simplify right side
    20,206.60x = 213,996,986.97
  5. Step 5: Solve for x
    x = 213,996,986.97/20,206.60
  6. Step 6: Final answer
    x = 10,590.45

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Similar ratio
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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.