Home / 19,550.78-26,962.62-15,351.74

Finding the Fourth Proportional to 19,550.78, 26,962.62 and 15,351.74

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Solution

The fourth proportional to 19,550.78, 26,962.62 and 15,351.74 is: 21,171.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,550.78 : 26,962.62 = 15,351.74 : x
  2. Step 2: Convert to fraction form
    19,550.78/26,962.62 = 15,351.74/x
  3. Step 3: Cross multiply
    19,550.78x = 26,962.62 × 15,351.74
  4. Step 4: Simplify right side
    19,550.78x = 413,923,131.96
  5. Step 5: Solve for x
    x = 413,923,131.96/19,550.78
  6. Step 6: Final answer
    x = 21,171.69

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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.