Home / 21,106.52-29,260.20-19,982.96

Finding the Fourth Proportional to 21,106.52, 29,260.20 and 19,982.96

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Solution

The fourth proportional to 21,106.52, 29,260.20 and 19,982.96 is: 27,702.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,106.52 : 29,260.20 = 19,982.96 : x
  2. Step 2: Convert to fraction form
    21,106.52/29,260.20 = 19,982.96/x
  3. Step 3: Cross multiply
    21,106.52x = 29,260.20 × 19,982.96
  4. Step 4: Simplify right side
    21,106.52x = 584,705,306.28
  5. Step 5: Solve for x
    x = 584,705,306.28/21,106.52
  6. Step 6: Final answer
    x = 27,702.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.