Home / 38,153.82-57,237.12-11,853.30

Finding the Fourth Proportional to 38,153.82, 57,237.12 and 11,853.30

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Solution

The fourth proportional to 38,153.82, 57,237.12 and 11,853.30 is: 17,781.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,153.82 : 57,237.12 = 11,853.30 : x
  2. Step 2: Convert to fraction form
    38,153.82/57,237.12 = 11,853.30/x
  3. Step 3: Cross multiply
    38,153.82x = 57,237.12 × 11,853.30
  4. Step 4: Simplify right side
    38,153.82x = 678,448,754.50
  5. Step 5: Solve for x
    x = 678,448,754.50/38,153.82
  6. Step 6: Final answer
    x = 17,781.94

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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.