Home / 38,287.83-57,431.75-11,994.63

Finding the Fourth Proportional to 38,287.83, 57,431.75 and 11,994.63

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Solution

The fourth proportional to 38,287.83, 57,431.75 and 11,994.63 is: 17,991.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,287.83 : 57,431.75 = 11,994.63 : x
  2. Step 2: Convert to fraction form
    38,287.83/57,431.75 = 11,994.63/x
  3. Step 3: Cross multiply
    38,287.83x = 57,431.75 × 11,994.63
  4. Step 4: Simplify right side
    38,287.83x = 688,872,591.50
  5. Step 5: Solve for x
    x = 688,872,591.50/38,287.83
  6. Step 6: Final answer
    x = 17,991.95

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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.