Home / 38,638.44-57,862.62-18,853.20

Finding the Fourth Proportional to 38,638.44, 57,862.62 and 18,853.20

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Solution

The fourth proportional to 38,638.44, 57,862.62 and 18,853.20 is: 28,233.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,638.44 : 57,862.62 = 18,853.20 : x
  2. Step 2: Convert to fraction form
    38,638.44/57,862.62 = 18,853.20/x
  3. Step 3: Cross multiply
    38,638.44x = 57,862.62 × 18,853.20
  4. Step 4: Simplify right side
    38,638.44x = 1,090,895,547.38
  5. Step 5: Solve for x
    x = 1,090,895,547.38/38,638.44
  6. Step 6: Final answer
    x = 28,233.43

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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.