Home / 19,998.33-30,015.78-10,144.41

Finding the Fourth Proportional to 19,998.33, 30,015.78 and 10,144.41

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Solution

The fourth proportional to 19,998.33, 30,015.78 and 10,144.41 is: 15,225.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,998.33 : 30,015.78 = 10,144.41 : x
  2. Step 2: Convert to fraction form
    19,998.33/30,015.78 = 10,144.41/x
  3. Step 3: Cross multiply
    19,998.33x = 30,015.78 × 10,144.41
  4. Step 4: Simplify right side
    19,998.33x = 304,492,378.79
  5. Step 5: Solve for x
    x = 304,492,378.79/19,998.33
  6. Step 6: Final answer
    x = 15,225.89

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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.