Home / 20,933.32-28,887.77-11,373.01

Finding the Fourth Proportional to 20,933.32, 28,887.77 and 11,373.01

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Solution

The fourth proportional to 20,933.32, 28,887.77 and 11,373.01 is: 15,694.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,933.32 : 28,887.77 = 11,373.01 : x
  2. Step 2: Convert to fraction form
    20,933.32/28,887.77 = 11,373.01/x
  3. Step 3: Cross multiply
    20,933.32x = 28,887.77 × 11,373.01
  4. Step 4: Simplify right side
    20,933.32x = 328,540,853.30
  5. Step 5: Solve for x
    x = 328,540,853.30/20,933.32
  6. Step 6: Final answer
    x = 15,694.64

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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.