Home / 31,976.87-47,963.55-9,790.23

Finding the Fourth Proportional to 31,976.87, 47,963.55 and 9,790.23

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Solution

The fourth proportional to 31,976.87, 47,963.55 and 9,790.23 is: 14,684.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,976.87 : 47,963.55 = 9,790.23 : x
  2. Step 2: Convert to fraction form
    31,976.87/47,963.55 = 9,790.23/x
  3. Step 3: Cross multiply
    31,976.87x = 47,963.55 × 9,790.23
  4. Step 4: Simplify right side
    31,976.87x = 469,574,186.12
  5. Step 5: Solve for x
    x = 469,574,186.12/31,976.87
  6. Step 6: Final answer
    x = 14,684.81

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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.