Home / 25,849.77-38,701.62-21,077.64

Finding the Fourth Proportional to 25,849.77, 38,701.62 and 21,077.64

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Solution

The fourth proportional to 25,849.77, 38,701.62 and 21,077.64 is: 31,556.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,849.77 : 38,701.62 = 21,077.64 : x
  2. Step 2: Convert to fraction form
    25,849.77/38,701.62 = 21,077.64/x
  3. Step 3: Cross multiply
    25,849.77x = 38,701.62 × 21,077.64
  4. Step 4: Simplify right side
    25,849.77x = 815,738,813.78
  5. Step 5: Solve for x
    x = 815,738,813.78/25,849.77
  6. Step 6: Final answer
    x = 31,556.91

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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.