Home / 22,238.87-30,689.36-12,167.18

Finding the Fourth Proportional to 22,238.87, 30,689.36 and 12,167.18

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Solution

The fourth proportional to 22,238.87, 30,689.36 and 12,167.18 is: 16,790.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,238.87 : 30,689.36 = 12,167.18 : x
  2. Step 2: Convert to fraction form
    22,238.87/30,689.36 = 12,167.18/x
  3. Step 3: Cross multiply
    22,238.87x = 30,689.36 × 12,167.18
  4. Step 4: Simplify right side
    22,238.87x = 373,402,844.18
  5. Step 5: Solve for x
    x = 373,402,844.18/22,238.87
  6. Step 6: Final answer
    x = 16,790.55

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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.