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Finding the Fourth Proportional to 36,070.96, 49,778.96 and 20,157.20

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Solution

The fourth proportional to 36,070.96, 49,778.96 and 20,157.20 is: 27,817.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,070.96 : 49,778.96 = 20,157.20 : x
  2. Step 2: Convert to fraction form
    36,070.96/49,778.96 = 20,157.20/x
  3. Step 3: Cross multiply
    36,070.96x = 49,778.96 × 20,157.20
  4. Step 4: Simplify right side
    36,070.96x = 1,003,404,452.51
  5. Step 5: Solve for x
    x = 1,003,404,452.51/36,070.96
  6. Step 6: Final answer
    x = 27,817.51

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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.