Home / 28,839.85-39,789.67-16,090.97

Finding the Fourth Proportional to 28,839.85, 39,789.67 and 16,090.97

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Solution

The fourth proportional to 28,839.85, 39,789.67 and 16,090.97 is: 22,200.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,839.85 : 39,789.67 = 16,090.97 : x
  2. Step 2: Convert to fraction form
    28,839.85/39,789.67 = 16,090.97/x
  3. Step 3: Cross multiply
    28,839.85x = 39,789.67 × 16,090.97
  4. Step 4: Simplify right side
    28,839.85x = 640,254,386.28
  5. Step 5: Solve for x
    x = 640,254,386.28/28,839.85
  6. Step 6: Final answer
    x = 22,200.34

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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.