Home / 20,138.22-30,157.90-16,606.62

Finding the Fourth Proportional to 20,138.22, 30,157.90 and 16,606.62

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Solution

The fourth proportional to 20,138.22, 30,157.90 and 16,606.62 is: 24,869.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,138.22 : 30,157.90 = 16,606.62 : x
  2. Step 2: Convert to fraction form
    20,138.22/30,157.90 = 16,606.62/x
  3. Step 3: Cross multiply
    20,138.22x = 30,157.90 × 16,606.62
  4. Step 4: Simplify right side
    20,138.22x = 500,820,785.30
  5. Step 5: Solve for x
    x = 500,820,785.30/20,138.22
  6. Step 6: Final answer
    x = 24,869.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.