Home / 19,078.62-26,315.19-18,436.38

Finding the Fourth Proportional to 19,078.62, 26,315.19 and 18,436.38

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Solution

The fourth proportional to 19,078.62, 26,315.19 and 18,436.38 is: 25,429.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,078.62 : 26,315.19 = 18,436.38 : x
  2. Step 2: Convert to fraction form
    19,078.62/26,315.19 = 18,436.38/x
  3. Step 3: Cross multiply
    19,078.62x = 26,315.19 × 18,436.38
  4. Step 4: Simplify right side
    19,078.62x = 485,156,842.61
  5. Step 5: Solve for x
    x = 485,156,842.61/19,078.62
  6. Step 6: Final answer
    x = 25,429.35

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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.