Home / 25,851.77-38,704.62-21,079.64

Finding the Fourth Proportional to 25,851.77, 38,704.62 and 21,079.64

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Solution

The fourth proportional to 25,851.77, 38,704.62 and 21,079.64 is: 31,559.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,851.77 : 38,704.62 = 21,079.64 : x
  2. Step 2: Convert to fraction form
    25,851.77/38,704.62 = 21,079.64/x
  3. Step 3: Cross multiply
    25,851.77x = 38,704.62 × 21,079.64
  4. Step 4: Simplify right side
    25,851.77x = 815,879,455.94
  5. Step 5: Solve for x
    x = 815,879,455.94/25,851.77
  6. Step 6: Final answer
    x = 31,559.91

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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.