Home / 22,191.24-30,619.85-12,630.57

Finding the Fourth Proportional to 22,191.24, 30,619.85 and 12,630.57

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Solution

The fourth proportional to 22,191.24, 30,619.85 and 12,630.57 is: 17,427.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,191.24 : 30,619.85 = 12,630.57 : x
  2. Step 2: Convert to fraction form
    22,191.24/30,619.85 = 12,630.57/x
  3. Step 3: Cross multiply
    22,191.24x = 30,619.85 × 12,630.57
  4. Step 4: Simplify right side
    22,191.24x = 386,746,158.81
  5. Step 5: Solve for x
    x = 386,746,158.81/22,191.24
  6. Step 6: Final answer
    x = 17,427.88

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.