Home / 22,156.92-30,579.44-12,725.55

Finding the Fourth Proportional to 22,156.92, 30,579.44 and 12,725.55

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Solution

The fourth proportional to 22,156.92, 30,579.44 and 12,725.55 is: 17,562.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,156.92 : 30,579.44 = 12,725.55 : x
  2. Step 2: Convert to fraction form
    22,156.92/30,579.44 = 12,725.55/x
  3. Step 3: Cross multiply
    22,156.92x = 30,579.44 × 12,725.55
  4. Step 4: Simplify right side
    22,156.92x = 389,140,129.06
  5. Step 5: Solve for x
    x = 389,140,129.06/22,156.92
  6. Step 6: Final answer
    x = 17,562.92

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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.