Home / 38,287.34-57,431.01-11,994.13

Finding the Fourth Proportional to 38,287.34, 57,431.01 and 11,994.13

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Solution

The fourth proportional to 38,287.34, 57,431.01 and 11,994.13 is: 17,991.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,287.34 : 57,431.01 = 11,994.13 : x
  2. Step 2: Convert to fraction form
    38,287.34/57,431.01 = 11,994.13/x
  3. Step 3: Cross multiply
    38,287.34x = 57,431.01 × 11,994.13
  4. Step 4: Simplify right side
    38,287.34x = 688,834,999.97
  5. Step 5: Solve for x
    x = 688,834,999.97/38,287.34
  6. Step 6: Final answer
    x = 17,991.20

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Double scale
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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.