Home / 21,040.13-29,035.78-11,608.49

Finding the Fourth Proportional to 21,040.13, 29,035.78 and 11,608.49

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Solution

The fourth proportional to 21,040.13, 29,035.78 and 11,608.49 is: 16,019.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,040.13 : 29,035.78 = 11,608.49 : x
  2. Step 2: Convert to fraction form
    21,040.13/29,035.78 = 11,608.49/x
  3. Step 3: Cross multiply
    21,040.13x = 29,035.78 × 11,608.49
  4. Step 4: Simplify right side
    21,040.13x = 337,061,387.57
  5. Step 5: Solve for x
    x = 337,061,387.57/21,040.13
  6. Step 6: Final answer
    x = 16,019.93

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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.