Home / 22,105.63-30,496.76-13,605.19

Finding the Fourth Proportional to 22,105.63, 30,496.76 and 13,605.19

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Solution

The fourth proportional to 22,105.63, 30,496.76 and 13,605.19 is: 18,769.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,105.63 : 30,496.76 = 13,605.19 : x
  2. Step 2: Convert to fraction form
    22,105.63/30,496.76 = 13,605.19/x
  3. Step 3: Cross multiply
    22,105.63x = 30,496.76 × 13,605.19
  4. Step 4: Simplify right side
    22,105.63x = 414,914,244.97
  5. Step 5: Solve for x
    x = 414,914,244.97/22,105.63
  6. Step 6: Final answer
    x = 18,769.62

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Half scale
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Double scale
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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.