Home / 28,720.36-43,062.78-11,169.64

Finding the Fourth Proportional to 28,720.36, 43,062.78 and 11,169.64

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Solution

The fourth proportional to 28,720.36, 43,062.78 and 11,169.64 is: 16,747.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,720.36 : 43,062.78 = 11,169.64 : x
  2. Step 2: Convert to fraction form
    28,720.36/43,062.78 = 11,169.64/x
  3. Step 3: Cross multiply
    28,720.36x = 43,062.78 × 11,169.64
  4. Step 4: Simplify right side
    28,720.36x = 480,995,750.00
  5. Step 5: Solve for x
    x = 480,995,750.00/28,720.36
  6. Step 6: Final answer
    x = 16,747.55

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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.