Home / 31,367.82-43,287.05-17,220.57

Finding the Fourth Proportional to 31,367.82, 43,287.05 and 17,220.57

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Solution

The fourth proportional to 31,367.82, 43,287.05 and 17,220.57 is: 23,764.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,367.82 : 43,287.05 = 17,220.57 : x
  2. Step 2: Convert to fraction form
    31,367.82/43,287.05 = 17,220.57/x
  3. Step 3: Cross multiply
    31,367.82x = 43,287.05 × 17,220.57
  4. Step 4: Simplify right side
    31,367.82x = 745,427,555.34
  5. Step 5: Solve for x
    x = 745,427,555.34/31,367.82
  6. Step 6: Final answer
    x = 23,764.08

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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.