Home / 38,290.38-57,435.50-11,997.16

Finding the Fourth Proportional to 38,290.38, 57,435.50 and 11,997.16

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Solution

The fourth proportional to 38,290.38, 57,435.50 and 11,997.16 is: 17,995.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,290.38 : 57,435.50 = 11,997.16 : x
  2. Step 2: Convert to fraction form
    38,290.38/57,435.50 = 11,997.16/x
  3. Step 3: Cross multiply
    38,290.38x = 57,435.50 × 11,997.16
  4. Step 4: Simplify right side
    38,290.38x = 689,062,883.18
  5. Step 5: Solve for x
    x = 689,062,883.18/38,290.38
  6. Step 6: Final answer
    x = 17,995.72

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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.