Home / 35,121.12-52,686.92-12,932.79

Finding the Fourth Proportional to 35,121.12, 52,686.92 and 12,932.79

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Solution

The fourth proportional to 35,121.12, 52,686.92 and 12,932.79 is: 19,401.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,121.12 : 52,686.92 = 12,932.79 : x
  2. Step 2: Convert to fraction form
    35,121.12/52,686.92 = 12,932.79/x
  3. Step 3: Cross multiply
    35,121.12x = 52,686.92 × 12,932.79
  4. Step 4: Simplify right side
    35,121.12x = 681,388,872.11
  5. Step 5: Solve for x
    x = 681,388,872.11/35,121.12
  6. Step 6: Final answer
    x = 19,401.11

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1.5x scale

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.