Home / 20,123.92-30,186.66-9,588.52

Finding the Fourth Proportional to 20,123.92, 30,186.66 and 9,588.52

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Solution

The fourth proportional to 20,123.92, 30,186.66 and 9,588.52 is: 14,383.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,123.92 : 30,186.66 = 9,588.52 : x
  2. Step 2: Convert to fraction form
    20,123.92/30,186.66 = 9,588.52/x
  3. Step 3: Cross multiply
    20,123.92x = 30,186.66 × 9,588.52
  4. Step 4: Simplify right side
    20,123.92x = 289,445,393.14
  5. Step 5: Solve for x
    x = 289,445,393.14/20,123.92
  6. Step 6: Final answer
    x = 14,383.15

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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.