Home / 22,076.26-30,465.12-13,130.62

Finding the Fourth Proportional to 22,076.26, 30,465.12 and 13,130.62

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Solution

The fourth proportional to 22,076.26, 30,465.12 and 13,130.62 is: 18,120.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,076.26 : 30,465.12 = 13,130.62 : x
  2. Step 2: Convert to fraction form
    22,076.26/30,465.12 = 13,130.62/x
  3. Step 3: Cross multiply
    22,076.26x = 30,465.12 × 13,130.62
  4. Step 4: Simplify right side
    22,076.26x = 400,025,913.97
  5. Step 5: Solve for x
    x = 400,025,913.97/22,076.26
  6. Step 6: Final answer
    x = 18,120.18

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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.