Home / 20,448.07-28,219.48-11,496.14

Finding the Fourth Proportional to 20,448.07, 28,219.48 and 11,496.14

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Solution

The fourth proportional to 20,448.07, 28,219.48 and 11,496.14 is: 15,865.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,448.07 : 28,219.48 = 11,496.14 : x
  2. Step 2: Convert to fraction form
    20,448.07/28,219.48 = 11,496.14/x
  3. Step 3: Cross multiply
    20,448.07x = 28,219.48 × 11,496.14
  4. Step 4: Simplify right side
    20,448.07x = 324,415,052.31
  5. Step 5: Solve for x
    x = 324,415,052.31/20,448.07
  6. Step 6: Final answer
    x = 15,865.31

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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.