Home / 20,476.25-28,259.94-11,525.49

Finding the Fourth Proportional to 20,476.25, 28,259.94 and 11,525.49

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Solution

The fourth proportional to 20,476.25, 28,259.94 and 11,525.49 is: 15,906.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,476.25 : 28,259.94 = 11,525.49 : x
  2. Step 2: Convert to fraction form
    20,476.25/28,259.94 = 11,525.49/x
  3. Step 3: Cross multiply
    20,476.25x = 28,259.94 × 11,525.49
  4. Step 4: Simplify right side
    20,476.25x = 325,709,655.87
  5. Step 5: Solve for x
    x = 325,709,655.87/20,476.25
  6. Step 6: Final answer
    x = 15,906.71

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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.