Home / 22,125.76-30,517.72-13,616.74

Finding the Fourth Proportional to 22,125.76, 30,517.72 and 13,616.74

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Solution

The fourth proportional to 22,125.76, 30,517.72 and 13,616.74 is: 18,781.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,125.76 : 30,517.72 = 13,616.74 : x
  2. Step 2: Convert to fraction form
    22,125.76/30,517.72 = 13,616.74/x
  3. Step 3: Cross multiply
    22,125.76x = 30,517.72 × 13,616.74
  4. Step 4: Simplify right side
    22,125.76x = 415,551,858.63
  5. Step 5: Solve for x
    x = 415,551,858.63/22,125.76
  6. Step 6: Final answer
    x = 18,781.36

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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.