Home / 33,121.32-45,687.92-20,837.16

Finding the Fourth Proportional to 33,121.32, 45,687.92 and 20,837.16

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Solution

The fourth proportional to 33,121.32, 45,687.92 and 20,837.16 is: 28,743.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,121.32 : 45,687.92 = 20,837.16 : x
  2. Step 2: Convert to fraction form
    33,121.32/45,687.92 = 20,837.16/x
  3. Step 3: Cross multiply
    33,121.32x = 45,687.92 × 20,837.16
  4. Step 4: Simplify right side
    33,121.32x = 952,006,463.03
  5. Step 5: Solve for x
    x = 952,006,463.03/33,121.32
  6. Step 6: Final answer
    x = 28,743.01

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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.