Home / 21,615.75-32,425.44-6,820.69

Finding the Fourth Proportional to 21,615.75, 32,425.44 and 6,820.69

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Solution

The fourth proportional to 21,615.75, 32,425.44 and 6,820.69 is: 10,231.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,615.75 : 32,425.44 = 6,820.69 : x
  2. Step 2: Convert to fraction form
    21,615.75/32,425.44 = 6,820.69/x
  3. Step 3: Cross multiply
    21,615.75x = 32,425.44 × 6,820.69
  4. Step 4: Simplify right side
    21,615.75x = 221,163,874.35
  5. Step 5: Solve for x
    x = 221,163,874.35/21,615.75
  6. Step 6: Final answer
    x = 10,231.61

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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.