Home / 20,228.13-30,345.67-6,187.82

Finding the Fourth Proportional to 20,228.13, 30,345.67 and 6,187.82

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Solution

The fourth proportional to 20,228.13, 30,345.67 and 6,187.82 is: 9,282.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,228.13 : 30,345.67 = 6,187.82 : x
  2. Step 2: Convert to fraction form
    20,228.13/30,345.67 = 6,187.82/x
  3. Step 3: Cross multiply
    20,228.13x = 30,345.67 × 6,187.82
  4. Step 4: Simplify right side
    20,228.13x = 187,773,543.74
  5. Step 5: Solve for x
    x = 187,773,543.74/20,228.13
  6. Step 6: Final answer
    x = 9,282.79

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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.