Home / 20,249.06-30,378.47-6,398.06

Finding the Fourth Proportional to 20,249.06, 30,378.47 and 6,398.06

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Solution

The fourth proportional to 20,249.06, 30,378.47 and 6,398.06 is: 9,598.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,249.06 : 30,378.47 = 6,398.06 : x
  2. Step 2: Convert to fraction form
    20,249.06/30,378.47 = 6,398.06/x
  3. Step 3: Cross multiply
    20,249.06x = 30,378.47 × 6,398.06
  4. Step 4: Simplify right side
    20,249.06x = 194,363,317.72
  5. Step 5: Solve for x
    x = 194,363,317.72/20,249.06
  6. Step 6: Final answer
    x = 9,598.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.