Home / 33,213.95-45,840.14-21,881.65

Finding the Fourth Proportional to 33,213.95, 45,840.14 and 21,881.65

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Solution

The fourth proportional to 33,213.95, 45,840.14 and 21,881.65 is: 30,199.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,213.95 : 45,840.14 = 21,881.65 : x
  2. Step 2: Convert to fraction form
    33,213.95/45,840.14 = 21,881.65/x
  3. Step 3: Cross multiply
    33,213.95x = 45,840.14 × 21,881.65
  4. Step 4: Simplify right side
    33,213.95x = 1,003,057,757.48
  5. Step 5: Solve for x
    x = 1,003,057,757.48/33,213.95
  6. Step 6: Final answer
    x = 30,199.89

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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.