Home / 20,323.25-30,494.59-7,181.81

Finding the Fourth Proportional to 20,323.25, 30,494.59 and 7,181.81

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Solution

The fourth proportional to 20,323.25, 30,494.59 and 7,181.81 is: 10,776.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,323.25 : 30,494.59 = 7,181.81 : x
  2. Step 2: Convert to fraction form
    20,323.25/30,494.59 = 7,181.81/x
  3. Step 3: Cross multiply
    20,323.25x = 30,494.59 × 7,181.81
  4. Step 4: Simplify right side
    20,323.25x = 219,006,275.17
  5. Step 5: Solve for x
    x = 219,006,275.17/20,323.25
  6. Step 6: Final answer
    x = 10,776.15

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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.