Home / 22,089.28-30,480.80-12,151.36

Finding the Fourth Proportional to 22,089.28, 30,480.80 and 12,151.36

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Solution

The fourth proportional to 22,089.28, 30,480.80 and 12,151.36 is: 16,767.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,089.28 : 30,480.80 = 12,151.36 : x
  2. Step 2: Convert to fraction form
    22,089.28/30,480.80 = 12,151.36/x
  3. Step 3: Cross multiply
    22,089.28x = 30,480.80 × 12,151.36
  4. Step 4: Simplify right side
    22,089.28x = 370,383,173.89
  5. Step 5: Solve for x
    x = 370,383,173.89/22,089.28
  6. Step 6: Final answer
    x = 16,767.55

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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.