Home / 22,005.36-30,372.57-13,055.13

Finding the Fourth Proportional to 22,005.36, 30,372.57 and 13,055.13

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Solution

The fourth proportional to 22,005.36, 30,372.57 and 13,055.13 is: 18,019.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,005.36 : 30,372.57 = 13,055.13 : x
  2. Step 2: Convert to fraction form
    22,005.36/30,372.57 = 13,055.13/x
  3. Step 3: Cross multiply
    22,005.36x = 30,372.57 × 13,055.13
  4. Step 4: Simplify right side
    22,005.36x = 396,517,849.78
  5. Step 5: Solve for x
    x = 396,517,849.78/22,005.36
  6. Step 6: Final answer
    x = 18,019.15

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Double scale
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Similar ratio
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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.