Home / 20,003.28-27,571.40-15,026.64

Finding the Fourth Proportional to 20,003.28, 27,571.40 and 15,026.64

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Solution

The fourth proportional to 20,003.28, 27,571.40 and 15,026.64 is: 20,711.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,003.28 : 27,571.40 = 15,026.64 : x
  2. Step 2: Convert to fraction form
    20,003.28/27,571.40 = 15,026.64/x
  3. Step 3: Cross multiply
    20,003.28x = 27,571.40 × 15,026.64
  4. Step 4: Simplify right side
    20,003.28x = 414,305,502.10
  5. Step 5: Solve for x
    x = 414,305,502.10/20,003.28
  6. Step 6: Final answer
    x = 20,711.88

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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.