Home / 34,579.20-51,863.08-12,389.28

Finding the Fourth Proportional to 34,579.20, 51,863.08 and 12,389.28

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Solution

The fourth proportional to 34,579.20, 51,863.08 and 12,389.28 is: 18,581.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,579.20 : 51,863.08 = 12,389.28 : x
  2. Step 2: Convert to fraction form
    34,579.20/51,863.08 = 12,389.28/x
  3. Step 3: Cross multiply
    34,579.20x = 51,863.08 × 12,389.28
  4. Step 4: Simplify right side
    34,579.20x = 642,546,219.78
  5. Step 5: Solve for x
    x = 642,546,219.78/34,579.20
  6. Step 6: Final answer
    x = 18,581.87

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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.