Home / 21,176.39-29,222.42-11,744.75

Finding the Fourth Proportional to 21,176.39, 29,222.42 and 11,744.75

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Solution

The fourth proportional to 21,176.39, 29,222.42 and 11,744.75 is: 16,207.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,176.39 : 29,222.42 = 11,744.75 : x
  2. Step 2: Convert to fraction form
    21,176.39/29,222.42 = 11,744.75/x
  3. Step 3: Cross multiply
    21,176.39x = 29,222.42 × 11,744.75
  4. Step 4: Simplify right side
    21,176.39x = 343,209,812.46
  5. Step 5: Solve for x
    x = 343,209,812.46/21,176.39
  6. Step 6: Final answer
    x = 16,207.20

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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.