Home / 33,213.57-45,808.80-21,278.01

Finding the Fourth Proportional to 33,213.57, 45,808.80 and 21,278.01

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Solution

The fourth proportional to 33,213.57, 45,808.80 and 21,278.01 is: 29,347.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,213.57 : 45,808.80 = 21,278.01 : x
  2. Step 2: Convert to fraction form
    33,213.57/45,808.80 = 21,278.01/x
  3. Step 3: Cross multiply
    33,213.57x = 45,808.80 × 21,278.01
  4. Step 4: Simplify right side
    33,213.57x = 974,720,104.49
  5. Step 5: Solve for x
    x = 974,720,104.49/33,213.57
  6. Step 6: Final answer
    x = 29,347.04

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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.