Home / 26,649.38-39,930.33-9,109.64

Finding the Fourth Proportional to 26,649.38, 39,930.33 and 9,109.64

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Solution

The fourth proportional to 26,649.38, 39,930.33 and 9,109.64 is: 13,649.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,649.38 : 39,930.33 = 9,109.64 : x
  2. Step 2: Convert to fraction form
    26,649.38/39,930.33 = 9,109.64/x
  3. Step 3: Cross multiply
    26,649.38x = 39,930.33 × 9,109.64
  4. Step 4: Simplify right side
    26,649.38x = 363,751,031.21
  5. Step 5: Solve for x
    x = 363,751,031.21/26,649.38
  6. Step 6: Final answer
    x = 13,649.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.