Home / 31,187.76-43,058.17-20,296.27

Finding the Fourth Proportional to 31,187.76, 43,058.17 and 20,296.27

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Solution

The fourth proportional to 31,187.76, 43,058.17 and 20,296.27 is: 28,021.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,187.76 : 43,058.17 = 20,296.27 : x
  2. Step 2: Convert to fraction form
    31,187.76/43,058.17 = 20,296.27/x
  3. Step 3: Cross multiply
    31,187.76x = 43,058.17 × 20,296.27
  4. Step 4: Simplify right side
    31,187.76x = 873,920,244.03
  5. Step 5: Solve for x
    x = 873,920,244.03/31,187.76
  6. Step 6: Final answer
    x = 28,021.26

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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.