Home / 21,040.35-29,035.66-11,608.91

Finding the Fourth Proportional to 21,040.35, 29,035.66 and 11,608.91

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Solution

The fourth proportional to 21,040.35, 29,035.66 and 11,608.91 is: 16,020.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,040.35 : 29,035.66 = 11,608.91 : x
  2. Step 2: Convert to fraction form
    21,040.35/29,035.66 = 11,608.91/x
  3. Step 3: Cross multiply
    21,040.35x = 29,035.66 × 11,608.91
  4. Step 4: Simplify right side
    21,040.35x = 337,072,298.41
  5. Step 5: Solve for x
    x = 337,072,298.41/21,040.35
  6. Step 6: Final answer
    x = 16,020.28

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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.