Home / 20,677.14-28,544.13-13,229.46

Finding the Fourth Proportional to 20,677.14, 28,544.13 and 13,229.46

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Solution

The fourth proportional to 20,677.14, 28,544.13 and 13,229.46 is: 18,262.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,677.14 : 28,544.13 = 13,229.46 : x
  2. Step 2: Convert to fraction form
    20,677.14/28,544.13 = 13,229.46/x
  3. Step 3: Cross multiply
    20,677.14x = 28,544.13 × 13,229.46
  4. Step 4: Simplify right side
    20,677.14x = 377,623,426.07
  5. Step 5: Solve for x
    x = 377,623,426.07/20,677.14
  6. Step 6: Final answer
    x = 18,262.85

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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.