Home / 22,439.09-30,965.53-12,230.21

Finding the Fourth Proportional to 22,439.09, 30,965.53 and 12,230.21

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Solution

The fourth proportional to 22,439.09, 30,965.53 and 12,230.21 is: 16,877.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,439.09 : 30,965.53 = 12,230.21 : x
  2. Step 2: Convert to fraction form
    22,439.09/30,965.53 = 12,230.21/x
  3. Step 3: Cross multiply
    22,439.09x = 30,965.53 × 12,230.21
  4. Step 4: Simplify right side
    22,439.09x = 378,714,718.68
  5. Step 5: Solve for x
    x = 378,714,718.68/22,439.09
  6. Step 6: Final answer
    x = 16,877.46

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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.