Home / 22,105.64-30,496.75-13,605.20

Finding the Fourth Proportional to 22,105.64, 30,496.75 and 13,605.20

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Solution

The fourth proportional to 22,105.64, 30,496.75 and 13,605.20 is: 18,769.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,105.64 : 30,496.75 = 13,605.20 : x
  2. Step 2: Convert to fraction form
    22,105.64/30,496.75 = 13,605.20/x
  3. Step 3: Cross multiply
    22,105.64x = 30,496.75 × 13,605.20
  4. Step 4: Simplify right side
    22,105.64x = 414,914,387.50
  5. Step 5: Solve for x
    x = 414,914,387.50/22,105.64
  6. Step 6: Final answer
    x = 18,769.61

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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.