Home / 19,885.92-29,824.23-8,786.55

Finding the Fourth Proportional to 19,885.92, 29,824.23 and 8,786.55

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Solution

The fourth proportional to 19,885.92, 29,824.23 and 8,786.55 is: 13,177.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,885.92 : 29,824.23 = 8,786.55 : x
  2. Step 2: Convert to fraction form
    19,885.92/29,824.23 = 8,786.55/x
  3. Step 3: Cross multiply
    19,885.92x = 29,824.23 × 8,786.55
  4. Step 4: Simplify right side
    19,885.92x = 262,052,088.11
  5. Step 5: Solve for x
    x = 262,052,088.11/19,885.92
  6. Step 6: Final answer
    x = 13,177.77

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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.