Home / 34,389.87-51,589.40-13,608.51

Finding the Fourth Proportional to 34,389.87, 51,589.40 and 13,608.51

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Solution

The fourth proportional to 34,389.87, 51,589.40 and 13,608.51 is: 20,414.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,389.87 : 51,589.40 = 13,608.51 : x
  2. Step 2: Convert to fraction form
    34,389.87/51,589.40 = 13,608.51/x
  3. Step 3: Cross multiply
    34,389.87x = 51,589.40 × 13,608.51
  4. Step 4: Simplify right side
    34,389.87x = 702,054,797.75
  5. Step 5: Solve for x
    x = 702,054,797.75/34,389.87
  6. Step 6: Final answer
    x = 20,414.58

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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.