Home / 22,156.26-30,575.90-12,725.70

Finding the Fourth Proportional to 22,156.26, 30,575.90 and 12,725.70

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Solution

The fourth proportional to 22,156.26, 30,575.90 and 12,725.70 is: 17,561.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,156.26 : 30,575.90 = 12,725.70 : x
  2. Step 2: Convert to fraction form
    22,156.26/30,575.90 = 12,725.70/x
  3. Step 3: Cross multiply
    22,156.26x = 30,575.90 × 12,725.70
  4. Step 4: Simplify right side
    22,156.26x = 389,099,730.63
  5. Step 5: Solve for x
    x = 389,099,730.63/22,156.26
  6. Step 6: Final answer
    x = 17,561.62

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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.