Home / 18,943.75-28,374.92-15,369.83

Finding the Fourth Proportional to 18,943.75, 28,374.92 and 15,369.83

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Solution

The fourth proportional to 18,943.75, 28,374.92 and 15,369.83 is: 23,021.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,943.75 : 28,374.92 = 15,369.83 : x
  2. Step 2: Convert to fraction form
    18,943.75/28,374.92 = 15,369.83/x
  3. Step 3: Cross multiply
    18,943.75x = 28,374.92 × 15,369.83
  4. Step 4: Simplify right side
    18,943.75x = 436,117,696.66
  5. Step 5: Solve for x
    x = 436,117,696.66/18,943.75
  6. Step 6: Final answer
    x = 23,021.72

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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.