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Finding the Fourth Proportional to 35,397.55, 48,843.01 and 20,287.30

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Solution

The fourth proportional to 35,397.55, 48,843.01 and 20,287.30 is: 27,993.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,397.55 : 48,843.01 = 20,287.30 : x
  2. Step 2: Convert to fraction form
    35,397.55/48,843.01 = 20,287.30/x
  3. Step 3: Cross multiply
    35,397.55x = 48,843.01 × 20,287.30
  4. Step 4: Simplify right side
    35,397.55x = 990,892,796.77
  5. Step 5: Solve for x
    x = 990,892,796.77/35,397.55
  6. Step 6: Final answer
    x = 27,993.26

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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.