Home / 20,587.06-30,859.38-8,102.03

Finding the Fourth Proportional to 20,587.06, 30,859.38 and 8,102.03

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Solution

The fourth proportional to 20,587.06, 30,859.38 and 8,102.03 is: 12,144.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,587.06 : 30,859.38 = 8,102.03 : x
  2. Step 2: Convert to fraction form
    20,587.06/30,859.38 = 8,102.03/x
  3. Step 3: Cross multiply
    20,587.06x = 30,859.38 × 8,102.03
  4. Step 4: Simplify right side
    20,587.06x = 250,023,468.24
  5. Step 5: Solve for x
    x = 250,023,468.24/20,587.06
  6. Step 6: Final answer
    x = 12,144.69

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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.