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Finding the Fourth Proportional to 20,571.30, 27,793.13 and 20,571.30

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Solution

The fourth proportional to 20,571.30, 27,793.13 and 20,571.30 is: 27,793.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,571.30 : 27,793.13 = 20,571.30 : x
  2. Step 2: Convert to fraction form
    20,571.30/27,793.13 = 20,571.30/x
  3. Step 3: Cross multiply
    20,571.30x = 27,793.13 × 20,571.30
  4. Step 4: Simplify right side
    20,571.30x = 571,740,712.31
  5. Step 5: Solve for x
    x = 571,740,712.31/20,571.30
  6. Step 6: Final answer
    x = 27,793.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.