Home / 20,445.48-30,670.74-7,299.24

Finding the Fourth Proportional to 20,445.48, 30,670.74 and 7,299.24

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Solution

The fourth proportional to 20,445.48, 30,670.74 and 7,299.24 is: 10,949.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,445.48 : 30,670.74 = 7,299.24 : x
  2. Step 2: Convert to fraction form
    20,445.48/30,670.74 = 7,299.24/x
  3. Step 3: Cross multiply
    20,445.48x = 30,670.74 × 7,299.24
  4. Step 4: Simplify right side
    20,445.48x = 223,873,092.24
  5. Step 5: Solve for x
    x = 223,873,092.24/20,445.48
  6. Step 6: Final answer
    x = 10,949.76

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Double scale
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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.