Home / 31,743.41-43,794.61-18,318.06

Finding the Fourth Proportional to 31,743.41, 43,794.61 and 18,318.06

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Solution

The fourth proportional to 31,743.41, 43,794.61 and 18,318.06 is: 25,272.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,743.41 : 43,794.61 = 18,318.06 : x
  2. Step 2: Convert to fraction form
    31,743.41/43,794.61 = 18,318.06/x
  3. Step 3: Cross multiply
    31,743.41x = 43,794.61 × 18,318.06
  4. Step 4: Simplify right side
    31,743.41x = 802,232,247.86
  5. Step 5: Solve for x
    x = 802,232,247.86/31,743.41
  6. Step 6: Final answer
    x = 25,272.41

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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.