Home / 31,376.52-46,947.14-18,679.83

Finding the Fourth Proportional to 31,376.52, 46,947.14 and 18,679.83

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Solution

The fourth proportional to 31,376.52, 46,947.14 and 18,679.83 is: 27,949.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,376.52 : 46,947.14 = 18,679.83 : x
  2. Step 2: Convert to fraction form
    31,376.52/46,947.14 = 18,679.83/x
  3. Step 3: Cross multiply
    31,376.52x = 46,947.14 × 18,679.83
  4. Step 4: Simplify right side
    31,376.52x = 876,964,746.89
  5. Step 5: Solve for x
    x = 876,964,746.89/31,376.52
  6. Step 6: Final answer
    x = 27,949.72

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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.