Home / 28,193.58-38,914.14-16,869.78

Finding the Fourth Proportional to 28,193.58, 38,914.14 and 16,869.78

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Solution

The fourth proportional to 28,193.58, 38,914.14 and 16,869.78 is: 23,284.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,193.58 : 38,914.14 = 16,869.78 : x
  2. Step 2: Convert to fraction form
    28,193.58/38,914.14 = 16,869.78/x
  3. Step 3: Cross multiply
    28,193.58x = 38,914.14 × 16,869.78
  4. Step 4: Simplify right side
    28,193.58x = 656,472,980.69
  5. Step 5: Solve for x
    x = 656,472,980.69/28,193.58
  6. Step 6: Final answer
    x = 23,284.48

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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.