Home / 20,058.50-30,087.79-11,288.63

Finding the Fourth Proportional to 20,058.50, 30,087.79 and 11,288.63

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Solution

The fourth proportional to 20,058.50, 30,087.79 and 11,288.63 is: 16,932.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,058.50 : 30,087.79 = 11,288.63 : x
  2. Step 2: Convert to fraction form
    20,058.50/30,087.79 = 11,288.63/x
  3. Step 3: Cross multiply
    20,058.50x = 30,087.79 × 11,288.63
  4. Step 4: Simplify right side
    20,058.50x = 339,649,975.83
  5. Step 5: Solve for x
    x = 339,649,975.83/20,058.50
  6. Step 6: Final answer
    x = 16,932.97

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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.