Home / 20,581.45-30,871.68-9,488.14

Finding the Fourth Proportional to 20,581.45, 30,871.68 and 9,488.14

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Solution

The fourth proportional to 20,581.45, 30,871.68 and 9,488.14 is: 14,231.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,581.45 : 30,871.68 = 9,488.14 : x
  2. Step 2: Convert to fraction form
    20,581.45/30,871.68 = 9,488.14/x
  3. Step 3: Cross multiply
    20,581.45x = 30,871.68 × 9,488.14
  4. Step 4: Simplify right side
    20,581.45x = 292,914,762.49
  5. Step 5: Solve for x
    x = 292,914,762.49/20,581.45
  6. Step 6: Final answer
    x = 14,231.98

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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.