Home / 31,438.09-43,385.39-17,291.31

Finding the Fourth Proportional to 31,438.09, 43,385.39 and 17,291.31

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Solution

The fourth proportional to 31,438.09, 43,385.39 and 17,291.31 is: 23,862.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,438.09 : 43,385.39 = 17,291.31 : x
  2. Step 2: Convert to fraction form
    31,438.09/43,385.39 = 17,291.31/x
  3. Step 3: Cross multiply
    31,438.09x = 43,385.39 × 17,291.31
  4. Step 4: Simplify right side
    31,438.09x = 750,190,227.96
  5. Step 5: Solve for x
    x = 750,190,227.96/31,438.09
  6. Step 6: Final answer
    x = 23,862.46

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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.