Home / 21,550.92-29,740.19-12,119.48

Finding the Fourth Proportional to 21,550.92, 29,740.19 and 12,119.48

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Solution

The fourth proportional to 21,550.92, 29,740.19 and 12,119.48 is: 16,724.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,550.92 : 29,740.19 = 12,119.48 : x
  2. Step 2: Convert to fraction form
    21,550.92/29,740.19 = 12,119.48/x
  3. Step 3: Cross multiply
    21,550.92x = 29,740.19 × 12,119.48
  4. Step 4: Simplify right side
    21,550.92x = 360,435,637.90
  5. Step 5: Solve for x
    x = 360,435,637.90/21,550.92
  6. Step 6: Final answer
    x = 16,724.84

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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.