Home / 28,335.78-42,454.41-19,884.36

Finding the Fourth Proportional to 28,335.78, 42,454.41 and 19,884.36

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Solution

The fourth proportional to 28,335.78, 42,454.41 and 19,884.36 is: 29,791.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,335.78 : 42,454.41 = 19,884.36 : x
  2. Step 2: Convert to fraction form
    28,335.78/42,454.41 = 19,884.36/x
  3. Step 3: Cross multiply
    28,335.78x = 42,454.41 × 19,884.36
  4. Step 4: Simplify right side
    28,335.78x = 844,178,772.03
  5. Step 5: Solve for x
    x = 844,178,772.03/28,335.78
  6. Step 6: Final answer
    x = 29,791.97

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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.