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Finding the Fourth Proportional to 35,392.31, 48,843.40 and 20,287.48

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Solution

The fourth proportional to 35,392.31, 48,843.40 and 20,287.48 is: 27,997.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,392.31 : 48,843.40 = 20,287.48 : x
  2. Step 2: Convert to fraction form
    35,392.31/48,843.40 = 20,287.48/x
  3. Step 3: Cross multiply
    35,392.31x = 48,843.40 × 20,287.48
  4. Step 4: Simplify right side
    35,392.31x = 990,909,327.80
  5. Step 5: Solve for x
    x = 990,909,327.80/35,392.31
  6. Step 6: Final answer
    x = 27,997.87

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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.