Home / 21,062,112.60-31,593,168.90-17,660,890.20

Finding the Fourth Proportional to 21,062,112.60, 31,593,168.90 and 17,660,890.20

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Solution

The fourth proportional to 21,062,112.60, 31,593,168.90 and 17,660,890.20 is: 26,491,335.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062,112.60 : 31,593,168.90 = 17,660,890.20 : x
  2. Step 2: Convert to fraction form
    21,062,112.60/31,593,168.90 = 17,660,890.20/x
  3. Step 3: Cross multiply
    21,062,112.60x = 31,593,168.90 × 17,660,890.20
  4. Step 4: Simplify right side
    21,062,112.60x = 557,963,487,012,954.75
  5. Step 5: Solve for x
    x = 557,963,487,012,954.75/21,062,112.60
  6. Step 6: Final answer
    x = 26,491,335.30

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Similar ratio
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1.5x scale

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.