Home / 22,911.10-31,617.19-13,956.71

Finding the Fourth Proportional to 22,911.10, 31,617.19 and 13,956.71

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Solution

The fourth proportional to 22,911.10, 31,617.19 and 13,956.71 is: 19,260.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,911.10 : 31,617.19 = 13,956.71 : x
  2. Step 2: Convert to fraction form
    22,911.10/31,617.19 = 13,956.71/x
  3. Step 3: Cross multiply
    22,911.10x = 31,617.19 × 13,956.71
  4. Step 4: Simplify right side
    22,911.10x = 441,271,732.70
  5. Step 5: Solve for x
    x = 441,271,732.70/22,911.10
  6. Step 6: Final answer
    x = 19,260.17

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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.