Home / 21,992.96-32,984.38-13,110.80

Finding the Fourth Proportional to 21,992.96, 32,984.38 and 13,110.80

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Solution

The fourth proportional to 21,992.96, 32,984.38 and 13,110.80 is: 19,663.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,992.96 : 32,984.38 = 13,110.80 : x
  2. Step 2: Convert to fraction form
    21,992.96/32,984.38 = 13,110.80/x
  3. Step 3: Cross multiply
    21,992.96x = 32,984.38 × 13,110.80
  4. Step 4: Simplify right side
    21,992.96x = 432,451,411.61
  5. Step 5: Solve for x
    x = 432,451,411.61/21,992.96
  6. Step 6: Final answer
    x = 19,663.18

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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.