Home / 21,042.08-29,076.55-20,017.02

Finding the Fourth Proportional to 21,042.08, 29,076.55 and 20,017.02

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Solution

The fourth proportional to 21,042.08, 29,076.55 and 20,017.02 is: 27,660.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042.08 : 29,076.55 = 20,017.02 : x
  2. Step 2: Convert to fraction form
    21,042.08/29,076.55 = 20,017.02/x
  3. Step 3: Cross multiply
    21,042.08x = 29,076.55 × 20,017.02
  4. Step 4: Simplify right side
    21,042.08x = 582,025,882.88
  5. Step 5: Solve for x
    x = 582,025,882.88/21,042.08
  6. Step 6: Final answer
    x = 27,660.10

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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.