Home / 36,386.89-54,479.10-18,579.09

Finding the Fourth Proportional to 36,386.89, 54,479.10 and 18,579.09

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Solution

The fourth proportional to 36,386.89, 54,479.10 and 18,579.09 is: 27,816.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,386.89 : 54,479.10 = 18,579.09 : x
  2. Step 2: Convert to fraction form
    36,386.89/54,479.10 = 18,579.09/x
  3. Step 3: Cross multiply
    36,386.89x = 54,479.10 × 18,579.09
  4. Step 4: Simplify right side
    36,386.89x = 1,012,172,102.02
  5. Step 5: Solve for x
    x = 1,012,172,102.02/36,386.89
  6. Step 6: Final answer
    x = 27,816.94

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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.