Home / 20,961.22-28,935.48-14,982.46

Finding the Fourth Proportional to 20,961.22, 28,935.48 and 14,982.46

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Solution

The fourth proportional to 20,961.22, 28,935.48 and 14,982.46 is: 20,682.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,961.22 : 28,935.48 = 14,982.46 : x
  2. Step 2: Convert to fraction form
    20,961.22/28,935.48 = 14,982.46/x
  3. Step 3: Cross multiply
    20,961.22x = 28,935.48 × 14,982.46
  4. Step 4: Simplify right side
    20,961.22x = 433,524,671.68
  5. Step 5: Solve for x
    x = 433,524,671.68/20,961.22
  6. Step 6: Final answer
    x = 20,682.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.