Home / 22,207.12-30,647.58-12,647.41

Finding the Fourth Proportional to 22,207.12, 30,647.58 and 12,647.41

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Solution

The fourth proportional to 22,207.12, 30,647.58 and 12,647.41 is: 17,454.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,207.12 : 30,647.58 = 12,647.41 : x
  2. Step 2: Convert to fraction form
    22,207.12/30,647.58 = 12,647.41/x
  3. Step 3: Cross multiply
    22,207.12x = 30,647.58 × 12,647.41
  4. Step 4: Simplify right side
    22,207.12x = 387,612,523.15
  5. Step 5: Solve for x
    x = 387,612,523.15/22,207.12
  6. Step 6: Final answer
    x = 17,454.42

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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.