Home / 20,363.74-28,099.11-11,410.54

Finding the Fourth Proportional to 20,363.74, 28,099.11 and 11,410.54

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Solution

The fourth proportional to 20,363.74, 28,099.11 and 11,410.54 is: 15,744.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,363.74 : 28,099.11 = 11,410.54 : x
  2. Step 2: Convert to fraction form
    20,363.74/28,099.11 = 11,410.54/x
  3. Step 3: Cross multiply
    20,363.74x = 28,099.11 × 11,410.54
  4. Step 4: Simplify right side
    20,363.74x = 320,626,018.62
  5. Step 5: Solve for x
    x = 320,626,018.62/20,363.74
  6. Step 6: Final answer
    x = 15,744.95

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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.