Home / 22,612.11-31,206.58-12,543.79

Finding the Fourth Proportional to 22,612.11, 31,206.58 and 12,543.79

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Solution

The fourth proportional to 22,612.11, 31,206.58 and 12,543.79 is: 17,311.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,612.11 : 31,206.58 = 12,543.79 : x
  2. Step 2: Convert to fraction form
    22,612.11/31,206.58 = 12,543.79/x
  3. Step 3: Cross multiply
    22,612.11x = 31,206.58 × 12,543.79
  4. Step 4: Simplify right side
    22,612.11x = 391,448,856.12
  5. Step 5: Solve for x
    x = 391,448,856.12/22,612.11
  6. Step 6: Final answer
    x = 17,311.47

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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.