Home / 20,261.75-30,395.84-8,575.07

Finding the Fourth Proportional to 20,261.75, 30,395.84 and 8,575.07

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Solution

The fourth proportional to 20,261.75, 30,395.84 and 8,575.07 is: 12,863.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,261.75 : 30,395.84 = 8,575.07 : x
  2. Step 2: Convert to fraction form
    20,261.75/30,395.84 = 8,575.07/x
  3. Step 3: Cross multiply
    20,261.75x = 30,395.84 × 8,575.07
  4. Step 4: Simplify right side
    20,261.75x = 260,646,260.85
  5. Step 5: Solve for x
    x = 260,646,260.85/20,261.75
  6. Step 6: Final answer
    x = 12,863.96

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1.5x scale

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.