Home / 15,525.25-23,290.31-5,139.43

Finding the Fourth Proportional to 15,525.25, 23,290.31 and 5,139.43

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Solution

The fourth proportional to 15,525.25, 23,290.31 and 5,139.43 is: 7,709.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,525.25 : 23,290.31 = 5,139.43 : x
  2. Step 2: Convert to fraction form
    15,525.25/23,290.31 = 5,139.43/x
  3. Step 3: Cross multiply
    15,525.25x = 23,290.31 × 5,139.43
  4. Step 4: Simplify right side
    15,525.25x = 119,698,917.92
  5. Step 5: Solve for x
    x = 119,698,917.92/15,525.25
  6. Step 6: Final answer
    x = 7,709.95

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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.