Home / 21,401.84-29,529.78-13,441.16

Finding the Fourth Proportional to 21,401.84, 29,529.78 and 13,441.16

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Solution

The fourth proportional to 21,401.84, 29,529.78 and 13,441.16 is: 18,545.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,401.84 : 29,529.78 = 13,441.16 : x
  2. Step 2: Convert to fraction form
    21,401.84/29,529.78 = 13,441.16/x
  3. Step 3: Cross multiply
    21,401.84x = 29,529.78 × 13,441.16
  4. Step 4: Simplify right side
    21,401.84x = 396,914,497.74
  5. Step 5: Solve for x
    x = 396,914,497.74/21,401.84
  6. Step 6: Final answer
    x = 18,545.81

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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.