Home / 22,127-30,516.36-13,629.29

Finding the Fourth Proportional to 22,127, 30,516.36 and 13,629.29

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Solution

The fourth proportional to 22,127, 30,516.36 and 13,629.29 is: 18,796.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,127 : 30,516.36 = 13,629.29 : x
  2. Step 2: Convert to fraction form
    22,127/30,516.36 = 13,629.29/x
  3. Step 3: Cross multiply
    22,127x = 30,516.36 × 13,629.29
  4. Step 4: Simplify right side
    22,127x = 415,916,320.18
  5. Step 5: Solve for x
    x = 415,916,320.18/22,127
  6. Step 6: Final answer
    x = 18,796.78

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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.