Home / 18,920.04-28,377.90-5,067.96

Finding the Fourth Proportional to 18,920.04, 28,377.90 and 5,067.96

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Solution

The fourth proportional to 18,920.04, 28,377.90 and 5,067.96 is: 7,601.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,920.04 : 28,377.90 = 5,067.96 : x
  2. Step 2: Convert to fraction form
    18,920.04/28,377.90 = 5,067.96/x
  3. Step 3: Cross multiply
    18,920.04x = 28,377.90 × 5,067.96
  4. Step 4: Simplify right side
    18,920.04x = 143,818,062.08
  5. Step 5: Solve for x
    x = 143,818,062.08/18,920.04
  6. Step 6: Final answer
    x = 7,601.36

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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.