Home / 21,716.05-32,628.75-13,822.20

Finding the Fourth Proportional to 21,716.05, 32,628.75 and 13,822.20

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Solution

The fourth proportional to 21,716.05, 32,628.75 and 13,822.20 is: 20,768.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,716.05 : 32,628.75 = 13,822.20 : x
  2. Step 2: Convert to fraction form
    21,716.05/32,628.75 = 13,822.20/x
  3. Step 3: Cross multiply
    21,716.05x = 32,628.75 × 13,822.20
  4. Step 4: Simplify right side
    21,716.05x = 451,001,108.25
  5. Step 5: Solve for x
    x = 451,001,108.25/21,716.05
  6. Step 6: Final answer
    x = 20,768.10

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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.