Home / 21,403.08-32,109.48-6,611.52

Finding the Fourth Proportional to 21,403.08, 32,109.48 and 6,611.52

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Solution

The fourth proportional to 21,403.08, 32,109.48 and 6,611.52 is: 9,918.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,403.08 : 32,109.48 = 6,611.52 : x
  2. Step 2: Convert to fraction form
    21,403.08/32,109.48 = 6,611.52/x
  3. Step 3: Cross multiply
    21,403.08x = 32,109.48 × 6,611.52
  4. Step 4: Simplify right side
    21,403.08x = 212,292,469.21
  5. Step 5: Solve for x
    x = 212,292,469.21/21,403.08
  6. Step 6: Final answer
    x = 9,918.78

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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.