Home / 21,885.20-32,820.12-6,298.64

Finding the Fourth Proportional to 21,885.20, 32,820.12 and 6,298.64

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Solution

The fourth proportional to 21,885.20, 32,820.12 and 6,298.64 is: 9,445.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,885.20 : 32,820.12 = 6,298.64 : x
  2. Step 2: Convert to fraction form
    21,885.20/32,820.12 = 6,298.64/x
  3. Step 3: Cross multiply
    21,885.20x = 32,820.12 × 6,298.64
  4. Step 4: Simplify right side
    21,885.20x = 206,722,120.64
  5. Step 5: Solve for x
    x = 206,722,120.64/21,885.20
  6. Step 6: Final answer
    x = 9,445.75

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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.