Home / 20,162.30-30,243.45-14,330.30

Finding the Fourth Proportional to 20,162.30, 30,243.45 and 14,330.30

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Solution

The fourth proportional to 20,162.30, 30,243.45 and 14,330.30 is: 21,495.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162.30 : 30,243.45 = 14,330.30 : x
  2. Step 2: Convert to fraction form
    20,162.30/30,243.45 = 14,330.30/x
  3. Step 3: Cross multiply
    20,162.30x = 30,243.45 × 14,330.30
  4. Step 4: Simplify right side
    20,162.30x = 433,397,711.54
  5. Step 5: Solve for x
    x = 433,397,711.54/20,162.30
  6. Step 6: Final answer
    x = 21,495.45

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Half scale
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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.