Home / 38,513.40-57,789.30-21,886.20

Finding the Fourth Proportional to 38,513.40, 57,789.30 and 21,886.20

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Solution

The fourth proportional to 38,513.40, 57,789.30 and 21,886.20 is: 32,840.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,513.40 : 57,789.30 = 21,886.20 : x
  2. Step 2: Convert to fraction form
    38,513.40/57,789.30 = 21,886.20/x
  3. Step 3: Cross multiply
    38,513.40x = 57,789.30 × 21,886.20
  4. Step 4: Simplify right side
    38,513.40x = 1,264,788,177.66
  5. Step 5: Solve for x
    x = 1,264,788,177.66/38,513.40
  6. Step 6: Final answer
    x = 32,840.21

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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.