Home / 22,418.25-30,939.35-12,482.25

Finding the Fourth Proportional to 22,418.25, 30,939.35 and 12,482.25

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Solution

The fourth proportional to 22,418.25, 30,939.35 and 12,482.25 is: 17,226.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,418.25 : 30,939.35 = 12,482.25 : x
  2. Step 2: Convert to fraction form
    22,418.25/30,939.35 = 12,482.25/x
  3. Step 3: Cross multiply
    22,418.25x = 30,939.35 × 12,482.25
  4. Step 4: Simplify right side
    22,418.25x = 386,192,639.13
  5. Step 5: Solve for x
    x = 386,192,639.13/22,418.25
  6. Step 6: Final answer
    x = 17,226.71

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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.