Home / 22,107.36-30,517.60-13,155.70

Finding the Fourth Proportional to 22,107.36, 30,517.60 and 13,155.70

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Solution

The fourth proportional to 22,107.36, 30,517.60 and 13,155.70 is: 18,160.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,107.36 : 30,517.60 = 13,155.70 : x
  2. Step 2: Convert to fraction form
    22,107.36/30,517.60 = 13,155.70/x
  3. Step 3: Cross multiply
    22,107.36x = 30,517.60 × 13,155.70
  4. Step 4: Simplify right side
    22,107.36x = 401,480,390.32
  5. Step 5: Solve for x
    x = 401,480,390.32/22,107.36
  6. Step 6: Final answer
    x = 18,160.49

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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.