Home / 21,452.12-32,178.35-8,808.83

Finding the Fourth Proportional to 21,452.12, 32,178.35 and 8,808.83

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Solution

The fourth proportional to 21,452.12, 32,178.35 and 8,808.83 is: 13,213.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,452.12 : 32,178.35 = 8,808.83 : x
  2. Step 2: Convert to fraction form
    21,452.12/32,178.35 = 8,808.83/x
  3. Step 3: Cross multiply
    21,452.12x = 32,178.35 × 8,808.83
  4. Step 4: Simplify right side
    21,452.12x = 283,453,409.89
  5. Step 5: Solve for x
    x = 283,453,409.89/21,452.12
  6. Step 6: Final answer
    x = 13,213.31

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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.