Home / 20,216.40-30,324.60-19,363.20

Finding the Fourth Proportional to 20,216.40, 30,324.60 and 19,363.20

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Solution

The fourth proportional to 20,216.40, 30,324.60 and 19,363.20 is: 29,044.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,216.40 : 30,324.60 = 19,363.20 : x
  2. Step 2: Convert to fraction form
    20,216.40/30,324.60 = 19,363.20/x
  3. Step 3: Cross multiply
    20,216.40x = 30,324.60 × 19,363.20
  4. Step 4: Simplify right side
    20,216.40x = 587,181,294.72
  5. Step 5: Solve for x
    x = 587,181,294.72/20,216.40
  6. Step 6: Final answer
    x = 29,044.80

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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.