Home / 22,454.09-30,985.32-12,382.65

Finding the Fourth Proportional to 22,454.09, 30,985.32 and 12,382.65

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Solution

The fourth proportional to 22,454.09, 30,985.32 and 12,382.65 is: 17,087.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,454.09 : 30,985.32 = 12,382.65 : x
  2. Step 2: Convert to fraction form
    22,454.09/30,985.32 = 12,382.65/x
  3. Step 3: Cross multiply
    22,454.09x = 30,985.32 × 12,382.65
  4. Step 4: Simplify right side
    22,454.09x = 383,680,349.48
  5. Step 5: Solve for x
    x = 383,680,349.48/22,454.09
  6. Step 6: Final answer
    x = 17,087.33

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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.