Home / 21,040.23-29,034.32-12,087.73

Finding the Fourth Proportional to 21,040.23, 29,034.32 and 12,087.73

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Solution

The fourth proportional to 21,040.23, 29,034.32 and 12,087.73 is: 16,680.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,040.23 : 29,034.32 = 12,087.73 : x
  2. Step 2: Convert to fraction form
    21,040.23/29,034.32 = 12,087.73/x
  3. Step 3: Cross multiply
    21,040.23x = 29,034.32 × 12,087.73
  4. Step 4: Simplify right side
    21,040.23x = 350,959,098.74
  5. Step 5: Solve for x
    x = 350,959,098.74/21,040.23
  6. Step 6: Final answer
    x = 16,680.38

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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.