Home / 28,229.28-38,955.48-15,654.96

Finding the Fourth Proportional to 28,229.28, 38,955.48 and 15,654.96

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Solution

The fourth proportional to 28,229.28, 38,955.48 and 15,654.96 is: 21,603.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,229.28 : 38,955.48 = 15,654.96 : x
  2. Step 2: Convert to fraction form
    28,229.28/38,955.48 = 15,654.96/x
  3. Step 3: Cross multiply
    28,229.28x = 38,955.48 × 15,654.96
  4. Step 4: Simplify right side
    28,229.28x = 609,846,481.18
  5. Step 5: Solve for x
    x = 609,846,481.18/28,229.28
  6. Step 6: Final answer
    x = 21,603.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.