Home / 35,138.92-48,493.86-20,239.72

Finding the Fourth Proportional to 35,138.92, 48,493.86 and 20,239.72

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Solution

The fourth proportional to 35,138.92, 48,493.86 and 20,239.72 is: 27,932.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,138.92 : 48,493.86 = 20,239.72 : x
  2. Step 2: Convert to fraction form
    35,138.92/48,493.86 = 20,239.72/x
  3. Step 3: Cross multiply
    35,138.92x = 48,493.86 × 20,239.72
  4. Step 4: Simplify right side
    35,138.92x = 981,502,148.12
  5. Step 5: Solve for x
    x = 981,502,148.12/35,138.92
  6. Step 6: Final answer
    x = 27,932.05

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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.