Home / 16,022.62-22,119.32-10,988.88

Finding the Fourth Proportional to 16,022.62, 22,119.32 and 10,988.88

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Solution

The fourth proportional to 16,022.62, 22,119.32 and 10,988.88 is: 15,170.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,022.62 : 22,119.32 = 10,988.88 : x
  2. Step 2: Convert to fraction form
    16,022.62/22,119.32 = 10,988.88/x
  3. Step 3: Cross multiply
    16,022.62x = 22,119.32 × 10,988.88
  4. Step 4: Simplify right side
    16,022.62x = 243,066,553.16
  5. Step 5: Solve for x
    x = 243,066,553.16/16,022.62
  6. Step 6: Final answer
    x = 15,170.21

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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.