Home / 33,020.16-45,549.36-21,691.44

Finding the Fourth Proportional to 33,020.16, 45,549.36 and 21,691.44

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Solution

The fourth proportional to 33,020.16, 45,549.36 and 21,691.44 is: 29,922.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,020.16 : 45,549.36 = 21,691.44 : x
  2. Step 2: Convert to fraction form
    33,020.16/45,549.36 = 21,691.44/x
  3. Step 3: Cross multiply
    33,020.16x = 45,549.36 × 21,691.44
  4. Step 4: Simplify right side
    33,020.16x = 988,031,209.48
  5. Step 5: Solve for x
    x = 988,031,209.48/33,020.16
  6. Step 6: Final answer
    x = 29,922.06

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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.