Home / 20,133.29-30,153.22-19,432.69

Finding the Fourth Proportional to 20,133.29, 30,153.22 and 19,432.69

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Solution

The fourth proportional to 20,133.29, 30,153.22 and 19,432.69 is: 29,103.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.29 : 30,153.22 = 19,432.69 : x
  2. Step 2: Convert to fraction form
    20,133.29/30,153.22 = 19,432.69/x
  3. Step 3: Cross multiply
    20,133.29x = 30,153.22 × 19,432.69
  4. Step 4: Simplify right side
    20,133.29x = 585,958,052.80
  5. Step 5: Solve for x
    x = 585,958,052.80/20,133.29
  6. Step 6: Final answer
    x = 29,103.94

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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.