Home / 18,742.92-28,239.42-16,966.20

Finding the Fourth Proportional to 18,742.92, 28,239.42 and 16,966.20

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Solution

The fourth proportional to 18,742.92, 28,239.42 and 16,966.20 is: 25,562.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,742.92 : 28,239.42 = 16,966.20 : x
  2. Step 2: Convert to fraction form
    18,742.92/28,239.42 = 16,966.20/x
  3. Step 3: Cross multiply
    18,742.92x = 28,239.42 × 16,966.20
  4. Step 4: Simplify right side
    18,742.92x = 479,115,647.60
  5. Step 5: Solve for x
    x = 479,115,647.60/18,742.92
  6. Step 6: Final answer
    x = 25,562.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.