Home / 20,448.21-28,216.58-11,952.32

Finding the Fourth Proportional to 20,448.21, 28,216.58 and 11,952.32

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Solution

The fourth proportional to 20,448.21, 28,216.58 and 11,952.32 is: 16,493.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,448.21 : 28,216.58 = 11,952.32 : x
  2. Step 2: Convert to fraction form
    20,448.21/28,216.58 = 11,952.32/x
  3. Step 3: Cross multiply
    20,448.21x = 28,216.58 × 11,952.32
  4. Step 4: Simplify right side
    20,448.21x = 337,253,593.47
  5. Step 5: Solve for x
    x = 337,253,593.47/20,448.21
  6. Step 6: Final answer
    x = 16,493.06

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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.