Home / 31,751.46-43,817.22-18,323.28

Finding the Fourth Proportional to 31,751.46, 43,817.22 and 18,323.28

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Solution

The fourth proportional to 31,751.46, 43,817.22 and 18,323.28 is: 25,286.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,751.46 : 43,817.22 = 18,323.28 : x
  2. Step 2: Convert to fraction form
    31,751.46/43,817.22 = 18,323.28/x
  3. Step 3: Cross multiply
    31,751.46x = 43,817.22 × 18,323.28
  4. Step 4: Simplify right side
    31,751.46x = 802,875,190.88
  5. Step 5: Solve for x
    x = 802,875,190.88/31,751.46
  6. Step 6: Final answer
    x = 25,286.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.