Home / 22,229.28-30,675.28-12,291.36

Finding the Fourth Proportional to 22,229.28, 30,675.28 and 12,291.36

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Solution

The fourth proportional to 22,229.28, 30,675.28 and 12,291.36 is: 16,961.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,229.28 : 30,675.28 = 12,291.36 : x
  2. Step 2: Convert to fraction form
    22,229.28/30,675.28 = 12,291.36/x
  3. Step 3: Cross multiply
    22,229.28x = 30,675.28 × 12,291.36
  4. Step 4: Simplify right side
    22,229.28x = 377,040,909.58
  5. Step 5: Solve for x
    x = 377,040,909.58/22,229.28
  6. Step 6: Final answer
    x = 16,961.45

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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.