Home / 22,767.36-31,410-13,205.28

Finding the Fourth Proportional to 22,767.36, 31,410 and 13,205.28

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Solution

The fourth proportional to 22,767.36, 31,410 and 13,205.28 is: 18,218.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,767.36 : 31,410 = 13,205.28 : x
  2. Step 2: Convert to fraction form
    22,767.36/31,410 = 13,205.28/x
  3. Step 3: Cross multiply
    22,767.36x = 31,410 × 13,205.28
  4. Step 4: Simplify right side
    22,767.36x = 414,777,844.80
  5. Step 5: Solve for x
    x = 414,777,844.80/22,767.36
  6. Step 6: Final answer
    x = 18,218.09

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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.