Home / 33,205.80-45,803.53-20,279.01

Finding the Fourth Proportional to 33,205.80, 45,803.53 and 20,279.01

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Solution

The fourth proportional to 33,205.80, 45,803.53 and 20,279.01 is: 27,972.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,205.80 : 45,803.53 = 20,279.01 : x
  2. Step 2: Convert to fraction form
    33,205.80/45,803.53 = 20,279.01/x
  3. Step 3: Cross multiply
    33,205.80x = 45,803.53 × 20,279.01
  4. Step 4: Simplify right side
    33,205.80x = 928,850,242.91
  5. Step 5: Solve for x
    x = 928,850,242.91/33,205.80
  6. Step 6: Final answer
    x = 27,972.53

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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.