Home / 31,143.73-46,718.30-8,958.91

Finding the Fourth Proportional to 31,143.73, 46,718.30 and 8,958.91

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Solution

The fourth proportional to 31,143.73, 46,718.30 and 8,958.91 is: 13,439.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,143.73 : 46,718.30 = 8,958.91 : x
  2. Step 2: Convert to fraction form
    31,143.73/46,718.30 = 8,958.91/x
  3. Step 3: Cross multiply
    31,143.73x = 46,718.30 × 8,958.91
  4. Step 4: Simplify right side
    31,143.73x = 418,545,045.05
  5. Step 5: Solve for x
    x = 418,545,045.05/31,143.73
  6. Step 6: Final answer
    x = 13,439.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.