Home / 20,767.52-28,659.22-11,336.09

Finding the Fourth Proportional to 20,767.52, 28,659.22 and 11,336.09

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Solution

The fourth proportional to 20,767.52, 28,659.22 and 11,336.09 is: 15,643.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,767.52 : 28,659.22 = 11,336.09 : x
  2. Step 2: Convert to fraction form
    20,767.52/28,659.22 = 11,336.09/x
  3. Step 3: Cross multiply
    20,767.52x = 28,659.22 × 11,336.09
  4. Step 4: Simplify right side
    20,767.52x = 324,883,325.61
  5. Step 5: Solve for x
    x = 324,883,325.61/20,767.52
  6. Step 6: Final answer
    x = 15,643.82

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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.