Home / 28,338.22-39,044.73-18,761.86

Finding the Fourth Proportional to 28,338.22, 39,044.73 and 18,761.86

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Solution

The fourth proportional to 28,338.22, 39,044.73 and 18,761.86 is: 25,850.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,338.22 : 39,044.73 = 18,761.86 : x
  2. Step 2: Convert to fraction form
    28,338.22/39,044.73 = 18,761.86/x
  3. Step 3: Cross multiply
    28,338.22x = 39,044.73 × 18,761.86
  4. Step 4: Simplify right side
    28,338.22x = 732,551,758.00
  5. Step 5: Solve for x
    x = 732,551,758.00/28,338.22
  6. Step 6: Final answer
    x = 25,850.31

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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.