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Finding the Fourth Proportional to 35,380.01, 48,831.39 and 20,282.80

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Solution

The fourth proportional to 35,380.01, 48,831.39 and 20,282.80 is: 27,994.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,380.01 : 48,831.39 = 20,282.80 : x
  2. Step 2: Convert to fraction form
    35,380.01/48,831.39 = 20,282.80/x
  3. Step 3: Cross multiply
    35,380.01x = 48,831.39 × 20,282.80
  4. Step 4: Simplify right side
    35,380.01x = 990,437,317.09
  5. Step 5: Solve for x
    x = 990,437,317.09/35,380.01
  6. Step 6: Final answer
    x = 27,994.26

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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.