Home / 20,098.90-27,704.52-15,843.06

Finding the Fourth Proportional to 20,098.90, 27,704.52 and 15,843.06

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Solution

The fourth proportional to 20,098.90, 27,704.52 and 15,843.06 is: 21,838.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,098.90 : 27,704.52 = 15,843.06 : x
  2. Step 2: Convert to fraction form
    20,098.90/27,704.52 = 15,843.06/x
  3. Step 3: Cross multiply
    20,098.90x = 27,704.52 × 15,843.06
  4. Step 4: Simplify right side
    20,098.90x = 438,924,372.63
  5. Step 5: Solve for x
    x = 438,924,372.63/20,098.90
  6. Step 6: Final answer
    x = 21,838.23

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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.