Home / 38,872.21-58,310.13-12,579.01

Finding the Fourth Proportional to 38,872.21, 58,310.13 and 12,579.01

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Solution

The fourth proportional to 38,872.21, 58,310.13 and 12,579.01 is: 18,869.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,872.21 : 58,310.13 = 12,579.01 : x
  2. Step 2: Convert to fraction form
    38,872.21/58,310.13 = 12,579.01/x
  3. Step 3: Cross multiply
    38,872.21x = 58,310.13 × 12,579.01
  4. Step 4: Simplify right side
    38,872.21x = 733,483,708.37
  5. Step 5: Solve for x
    x = 733,483,708.37/38,872.21
  6. Step 6: Final answer
    x = 18,869.10

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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.