Home / 21,039.85-29,032.43-11,608.41

Finding the Fourth Proportional to 21,039.85, 29,032.43 and 11,608.41

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Solution

The fourth proportional to 21,039.85, 29,032.43 and 11,608.41 is: 16,018.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,039.85 : 29,032.43 = 11,608.41 : x
  2. Step 2: Convert to fraction form
    21,039.85/29,032.43 = 11,608.41/x
  3. Step 3: Cross multiply
    21,039.85x = 29,032.43 × 11,608.41
  4. Step 4: Simplify right side
    21,039.85x = 337,020,401.57
  5. Step 5: Solve for x
    x = 337,020,401.57/21,039.85
  6. Step 6: Final answer
    x = 16,018.19

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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.