Home / 19,993.07-30,007.97-10,139.42

Finding the Fourth Proportional to 19,993.07, 30,007.97 and 10,139.42

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Solution

The fourth proportional to 19,993.07, 30,007.97 and 10,139.42 is: 15,218.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,993.07 : 30,007.97 = 10,139.42 : x
  2. Step 2: Convert to fraction form
    19,993.07/30,007.97 = 10,139.42/x
  3. Step 3: Cross multiply
    19,993.07x = 30,007.97 × 10,139.42
  4. Step 4: Simplify right side
    19,993.07x = 304,263,210.44
  5. Step 5: Solve for x
    x = 304,263,210.44/19,993.07
  6. Step 6: Final answer
    x = 15,218.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.