Home / 28,045.22-38,702.40-15,469.97

Finding the Fourth Proportional to 28,045.22, 38,702.40 and 15,469.97

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Solution

The fourth proportional to 28,045.22, 38,702.40 and 15,469.97 is: 21,348.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,045.22 : 38,702.40 = 15,469.97 : x
  2. Step 2: Convert to fraction form
    28,045.22/38,702.40 = 15,469.97/x
  3. Step 3: Cross multiply
    28,045.22x = 38,702.40 × 15,469.97
  4. Step 4: Simplify right side
    28,045.22x = 598,724,773.42
  5. Step 5: Solve for x
    x = 598,724,773.42/28,045.22
  6. Step 6: Final answer
    x = 21,348.55

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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.