Home / 21,539.08-32,321.34-11,678.12

Finding the Fourth Proportional to 21,539.08, 32,321.34 and 11,678.12

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Solution

The fourth proportional to 21,539.08, 32,321.34 and 11,678.12 is: 17,524.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,539.08 : 32,321.34 = 11,678.12 : x
  2. Step 2: Convert to fraction form
    21,539.08/32,321.34 = 11,678.12/x
  3. Step 3: Cross multiply
    21,539.08x = 32,321.34 × 11,678.12
  4. Step 4: Simplify right side
    21,539.08x = 377,452,487.08
  5. Step 5: Solve for x
    x = 377,452,487.08/21,539.08
  6. Step 6: Final answer
    x = 17,524.08

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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.