Home / 20,122.60-27,706.98-16,724.20

Finding the Fourth Proportional to 20,122.60, 27,706.98 and 16,724.20

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Solution

The fourth proportional to 20,122.60, 27,706.98 and 16,724.20 is: 23,027.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,122.60 : 27,706.98 = 16,724.20 : x
  2. Step 2: Convert to fraction form
    20,122.60/27,706.98 = 16,724.20/x
  3. Step 3: Cross multiply
    20,122.60x = 27,706.98 × 16,724.20
  4. Step 4: Simplify right side
    20,122.60x = 463,377,074.92
  5. Step 5: Solve for x
    x = 463,377,074.92/20,122.60
  6. Step 6: Final answer
    x = 23,027.69

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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.