Home / 19,078.38-28,617.13-5,039.39

Finding the Fourth Proportional to 19,078.38, 28,617.13 and 5,039.39

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Solution

The fourth proportional to 19,078.38, 28,617.13 and 5,039.39 is: 7,558.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,078.38 : 28,617.13 = 5,039.39 : x
  2. Step 2: Convert to fraction form
    19,078.38/28,617.13 = 5,039.39/x
  3. Step 3: Cross multiply
    19,078.38x = 28,617.13 × 5,039.39
  4. Step 4: Simplify right side
    19,078.38x = 144,212,937.70
  5. Step 5: Solve for x
    x = 144,212,937.70/19,078.38
  6. Step 6: Final answer
    x = 7,558.97

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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.