Home / 20,088.84-30,123-11,771.52

Finding the Fourth Proportional to 20,088.84, 30,123 and 11,771.52

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Solution

The fourth proportional to 20,088.84, 30,123 and 11,771.52 is: 17,651.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088.84 : 30,123 = 11,771.52 : x
  2. Step 2: Convert to fraction form
    20,088.84/30,123 = 11,771.52/x
  3. Step 3: Cross multiply
    20,088.84x = 30,123 × 11,771.52
  4. Step 4: Simplify right side
    20,088.84x = 354,593,496.96
  5. Step 5: Solve for x
    x = 354,593,496.96/20,088.84
  6. Step 6: Final answer
    x = 17,651.27

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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.