Home / 31,435.29-46,907.91-28,640.79

Finding the Fourth Proportional to 31,435.29, 46,907.91 and 28,640.79

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Solution

The fourth proportional to 31,435.29, 46,907.91 and 28,640.79 is: 42,737.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,435.29 : 46,907.91 = 28,640.79 : x
  2. Step 2: Convert to fraction form
    31,435.29/46,907.91 = 28,640.79/x
  3. Step 3: Cross multiply
    31,435.29x = 46,907.91 × 28,640.79
  4. Step 4: Simplify right side
    31,435.29x = 1,343,479,599.65
  5. Step 5: Solve for x
    x = 1,343,479,599.65/31,435.29
  6. Step 6: Final answer
    x = 42,737.94

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.