Home / 31,240.26-46,865.79-13,711.86

Finding the Fourth Proportional to 31,240.26, 46,865.79 and 13,711.86

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Solution

The fourth proportional to 31,240.26, 46,865.79 and 13,711.86 is: 20,570.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,240.26 : 46,865.79 = 13,711.86 : x
  2. Step 2: Convert to fraction form
    31,240.26/46,865.79 = 13,711.86/x
  3. Step 3: Cross multiply
    31,240.26x = 46,865.79 × 13,711.86
  4. Step 4: Simplify right side
    31,240.26x = 642,617,151.27
  5. Step 5: Solve for x
    x = 642,617,151.27/31,240.26
  6. Step 6: Final answer
    x = 20,570.16

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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.