Home / 26,320.80-39,447.60-10,720.80

Finding the Fourth Proportional to 26,320.80, 39,447.60 and 10,720.80

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Solution

The fourth proportional to 26,320.80, 39,447.60 and 10,720.80 is: 16,067.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,320.80 : 39,447.60 = 10,720.80 : x
  2. Step 2: Convert to fraction form
    26,320.80/39,447.60 = 10,720.80/x
  3. Step 3: Cross multiply
    26,320.80x = 39,447.60 × 10,720.80
  4. Step 4: Simplify right side
    26,320.80x = 422,909,830.08
  5. Step 5: Solve for x
    x = 422,909,830.08/26,320.80
  6. Step 6: Final answer
    x = 16,067.51

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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.