Home / 31,491.05-43,458.69-17,151.44

Finding the Fourth Proportional to 31,491.05, 43,458.69 and 17,151.44

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Solution

The fourth proportional to 31,491.05, 43,458.69 and 17,151.44 is: 23,669.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,491.05 : 43,458.69 = 17,151.44 : x
  2. Step 2: Convert to fraction form
    31,491.05/43,458.69 = 17,151.44/x
  3. Step 3: Cross multiply
    31,491.05x = 43,458.69 × 17,151.44
  4. Step 4: Simplify right side
    31,491.05x = 745,378,896.72
  5. Step 5: Solve for x
    x = 745,378,896.72/31,491.05
  6. Step 6: Final answer
    x = 23,669.55

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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.