Home / 35,390.86-48,841.40-20,286.03

Finding the Fourth Proportional to 35,390.86, 48,841.40 and 20,286.03

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Solution

The fourth proportional to 35,390.86, 48,841.40 and 20,286.03 is: 27,995.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,390.86 : 48,841.40 = 20,286.03 : x
  2. Step 2: Convert to fraction form
    35,390.86/48,841.40 = 20,286.03/x
  3. Step 3: Cross multiply
    35,390.86x = 48,841.40 × 20,286.03
  4. Step 4: Simplify right side
    35,390.86x = 990,798,105.64
  5. Step 5: Solve for x
    x = 990,798,105.64/35,390.86
  6. Step 6: Final answer
    x = 27,995.88

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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.