Home / 22,238.15-30,689.08-12,166.71

Finding the Fourth Proportional to 22,238.15, 30,689.08 and 12,166.71

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Solution

The fourth proportional to 22,238.15, 30,689.08 and 12,166.71 is: 16,790.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,238.15 : 30,689.08 = 12,166.71 : x
  2. Step 2: Convert to fraction form
    22,238.15/30,689.08 = 12,166.71/x
  3. Step 3: Cross multiply
    22,238.15x = 30,689.08 × 12,166.71
  4. Step 4: Simplify right side
    22,238.15x = 373,384,991.03
  5. Step 5: Solve for x
    x = 373,384,991.03/22,238.15
  6. Step 6: Final answer
    x = 16,790.29

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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.