Home / 22,120.32-30,525.12-12,183.68

Finding the Fourth Proportional to 22,120.32, 30,525.12 and 12,183.68

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Solution

The fourth proportional to 22,120.32, 30,525.12 and 12,183.68 is: 16,812.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,120.32 : 30,525.12 = 12,183.68 : x
  2. Step 2: Convert to fraction form
    22,120.32/30,525.12 = 12,183.68/x
  3. Step 3: Cross multiply
    22,120.32x = 30,525.12 × 12,183.68
  4. Step 4: Simplify right side
    22,120.32x = 371,908,294.04
  5. Step 5: Solve for x
    x = 371,908,294.04/22,120.32
  6. Step 6: Final answer
    x = 16,812.97

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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.