Home / 38,154.20-57,231.30-15,960.20

Finding the Fourth Proportional to 38,154.20, 57,231.30 and 15,960.20

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Solution

The fourth proportional to 38,154.20, 57,231.30 and 15,960.20 is: 23,940.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,154.20 : 57,231.30 = 15,960.20 : x
  2. Step 2: Convert to fraction form
    38,154.20/57,231.30 = 15,960.20/x
  3. Step 3: Cross multiply
    38,154.20x = 57,231.30 × 15,960.20
  4. Step 4: Simplify right side
    38,154.20x = 913,422,994.26
  5. Step 5: Solve for x
    x = 913,422,994.26/38,154.20
  6. Step 6: Final answer
    x = 23,940.30

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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.