Home / 22,087.26-30,480.40-12,661.28

Finding the Fourth Proportional to 22,087.26, 30,480.40 and 12,661.28

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Solution

The fourth proportional to 22,087.26, 30,480.40 and 12,661.28 is: 17,472.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,087.26 : 30,480.40 = 12,661.28 : x
  2. Step 2: Convert to fraction form
    22,087.26/30,480.40 = 12,661.28/x
  3. Step 3: Cross multiply
    22,087.26x = 30,480.40 × 12,661.28
  4. Step 4: Simplify right side
    22,087.26x = 385,920,878.91
  5. Step 5: Solve for x
    x = 385,920,878.91/22,087.26
  6. Step 6: Final answer
    x = 17,472.56

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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.