Home / 31,290.10-46,935.25-7,916.54

Finding the Fourth Proportional to 31,290.10, 46,935.25 and 7,916.54

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Solution

The fourth proportional to 31,290.10, 46,935.25 and 7,916.54 is: 11,874.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,290.10 : 46,935.25 = 7,916.54 : x
  2. Step 2: Convert to fraction form
    31,290.10/46,935.25 = 7,916.54/x
  3. Step 3: Cross multiply
    31,290.10x = 46,935.25 × 7,916.54
  4. Step 4: Simplify right side
    31,290.10x = 371,564,529.57
  5. Step 5: Solve for x
    x = 371,564,529.57/31,290.10
  6. Step 6: Final answer
    x = 11,874.83

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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.