Home / 15,171.61-22,839.32-13,645.77

Finding the Fourth Proportional to 15,171.61, 22,839.32 and 13,645.77

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Solution

The fourth proportional to 15,171.61, 22,839.32 and 13,645.77 is: 20,542.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,171.61 : 22,839.32 = 13,645.77 : x
  2. Step 2: Convert to fraction form
    15,171.61/22,839.32 = 13,645.77/x
  3. Step 3: Cross multiply
    15,171.61x = 22,839.32 × 13,645.77
  4. Step 4: Simplify right side
    15,171.61x = 311,660,107.68
  5. Step 5: Solve for x
    x = 311,660,107.68/15,171.61
  6. Step 6: Final answer
    x = 20,542.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.