Home / 19,081.62-26,319.33-18,439.38

Finding the Fourth Proportional to 19,081.62, 26,319.33 and 18,439.38

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Solution

The fourth proportional to 19,081.62, 26,319.33 and 18,439.38 is: 25,433.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,081.62 : 26,319.33 = 18,439.38 : x
  2. Step 2: Convert to fraction form
    19,081.62/26,319.33 = 18,439.38/x
  3. Step 3: Cross multiply
    19,081.62x = 26,319.33 × 18,439.38
  4. Step 4: Simplify right side
    19,081.62x = 485,312,127.22
  5. Step 5: Solve for x
    x = 485,312,127.22/19,081.62
  6. Step 6: Final answer
    x = 25,433.49

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Half scale
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Double scale
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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.