Home / 18,579.70-27,869.46-4,539.81

Finding the Fourth Proportional to 18,579.70, 27,869.46 and 4,539.81

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Solution

The fourth proportional to 18,579.70, 27,869.46 and 4,539.81 is: 6,809.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,579.70 : 27,869.46 = 4,539.81 : x
  2. Step 2: Convert to fraction form
    18,579.70/27,869.46 = 4,539.81/x
  3. Step 3: Cross multiply
    18,579.70x = 27,869.46 × 4,539.81
  4. Step 4: Simplify right side
    18,579.70x = 126,522,053.20
  5. Step 5: Solve for x
    x = 126,522,053.20/18,579.70
  6. Step 6: Final answer
    x = 6,809.69

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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.