Home / 35,243.75-48,630.15-20,134.32

Finding the Fourth Proportional to 35,243.75, 48,630.15 and 20,134.32

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Solution

The fourth proportional to 35,243.75, 48,630.15 and 20,134.32 is: 27,781.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,243.75 : 48,630.15 = 20,134.32 : x
  2. Step 2: Convert to fraction form
    35,243.75/48,630.15 = 20,134.32/x
  3. Step 3: Cross multiply
    35,243.75x = 48,630.15 × 20,134.32
  4. Step 4: Simplify right side
    35,243.75x = 979,135,001.75
  5. Step 5: Solve for x
    x = 979,135,001.75/35,243.75
  6. Step 6: Final answer
    x = 27,781.81

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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.