Home / 20,863.97-31,295.67-5,069.12

Finding the Fourth Proportional to 20,863.97, 31,295.67 and 5,069.12

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Solution

The fourth proportional to 20,863.97, 31,295.67 and 5,069.12 is: 7,603.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,863.97 : 31,295.67 = 5,069.12 : x
  2. Step 2: Convert to fraction form
    20,863.97/31,295.67 = 5,069.12/x
  3. Step 3: Cross multiply
    20,863.97x = 31,295.67 × 5,069.12
  4. Step 4: Simplify right side
    20,863.97x = 158,641,506.71
  5. Step 5: Solve for x
    x = 158,641,506.71/20,863.97
  6. Step 6: Final answer
    x = 7,603.61

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1.5x scale

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.