Home / 22,190.48-30,621.84-12,119.36

Finding the Fourth Proportional to 22,190.48, 30,621.84 and 12,119.36

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Solution

The fourth proportional to 22,190.48, 30,621.84 and 12,119.36 is: 16,724.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,190.48 : 30,621.84 = 12,119.36 : x
  2. Step 2: Convert to fraction form
    22,190.48/30,621.84 = 12,119.36/x
  3. Step 3: Cross multiply
    22,190.48x = 30,621.84 × 12,119.36
  4. Step 4: Simplify right side
    22,190.48x = 371,117,102.82
  5. Step 5: Solve for x
    x = 371,117,102.82/22,190.48
  6. Step 6: Final answer
    x = 16,724.16

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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.