Home / 22,015.26-30,386.49-13,519.42

Finding the Fourth Proportional to 22,015.26, 30,386.49 and 13,519.42

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Solution

The fourth proportional to 22,015.26, 30,386.49 and 13,519.42 is: 18,660.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,015.26 : 30,386.49 = 13,519.42 : x
  2. Step 2: Convert to fraction form
    22,015.26/30,386.49 = 13,519.42/x
  3. Step 3: Cross multiply
    22,015.26x = 30,386.49 × 13,519.42
  4. Step 4: Simplify right side
    22,015.26x = 410,807,720.64
  5. Step 5: Solve for x
    x = 410,807,720.64/22,015.26
  6. Step 6: Final answer
    x = 18,660.13

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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.