Home / 26,480.40-39,720.68-8,950.36

Finding the Fourth Proportional to 26,480.40, 39,720.68 and 8,950.36

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Solution

The fourth proportional to 26,480.40, 39,720.68 and 8,950.36 is: 13,425.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,480.40 : 39,720.68 = 8,950.36 : x
  2. Step 2: Convert to fraction form
    26,480.40/39,720.68 = 8,950.36/x
  3. Step 3: Cross multiply
    26,480.40x = 39,720.68 × 8,950.36
  4. Step 4: Simplify right side
    26,480.40x = 355,514,385.44
  5. Step 5: Solve for x
    x = 355,514,385.44/26,480.40
  6. Step 6: Final answer
    x = 13,425.57

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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.