Home / 35,255.13-52,812.18-21,207.42

Finding the Fourth Proportional to 35,255.13, 52,812.18 and 21,207.42

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Solution

The fourth proportional to 35,255.13, 52,812.18 and 21,207.42 is: 31,768.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,255.13 : 52,812.18 = 21,207.42 : x
  2. Step 2: Convert to fraction form
    35,255.13/52,812.18 = 21,207.42/x
  3. Step 3: Cross multiply
    35,255.13x = 52,812.18 × 21,207.42
  4. Step 4: Simplify right side
    35,255.13x = 1,120,010,082.38
  5. Step 5: Solve for x
    x = 1,120,010,082.38/35,255.13
  6. Step 6: Final answer
    x = 31,768.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.