Home / 31,845.36-43,951.91-18,424.47

Finding the Fourth Proportional to 31,845.36, 43,951.91 and 18,424.47

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Solution

The fourth proportional to 31,845.36, 43,951.91 and 18,424.47 is: 25,428.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,845.36 : 43,951.91 = 18,424.47 : x
  2. Step 2: Convert to fraction form
    31,845.36/43,951.91 = 18,424.47/x
  3. Step 3: Cross multiply
    31,845.36x = 43,951.91 × 18,424.47
  4. Step 4: Simplify right side
    31,845.36x = 809,790,719.93
  5. Step 5: Solve for x
    x = 809,790,719.93/31,845.36
  6. Step 6: Final answer
    x = 25,428.84

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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.