Home / 31,456.67-43,436.46-20,893.46

Finding the Fourth Proportional to 31,456.67, 43,436.46 and 20,893.46

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Solution

The fourth proportional to 31,456.67, 43,436.46 and 20,893.46 is: 28,850.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,456.67 : 43,436.46 = 20,893.46 : x
  2. Step 2: Convert to fraction form
    31,456.67/43,436.46 = 20,893.46/x
  3. Step 3: Cross multiply
    31,456.67x = 43,436.46 × 20,893.46
  4. Step 4: Simplify right side
    31,456.67x = 907,537,722.37
  5. Step 5: Solve for x
    x = 907,537,722.37/31,456.67
  6. Step 6: Final answer
    x = 28,850.41

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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.