Home / 20,202.08-27,878.83-11,250.36

Finding the Fourth Proportional to 20,202.08, 27,878.83 and 11,250.36

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Solution

The fourth proportional to 20,202.08, 27,878.83 and 11,250.36 is: 15,525.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,202.08 : 27,878.83 = 11,250.36 : x
  2. Step 2: Convert to fraction form
    20,202.08/27,878.83 = 11,250.36/x
  3. Step 3: Cross multiply
    20,202.08x = 27,878.83 × 11,250.36
  4. Step 4: Simplify right side
    20,202.08x = 313,646,909.04
  5. Step 5: Solve for x
    x = 313,646,909.04/20,202.08
  6. Step 6: Final answer
    x = 15,525.48

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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.