Home / 20,941.18-28,898.50-11,509.54

Finding the Fourth Proportional to 20,941.18, 28,898.50 and 11,509.54

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Solution

The fourth proportional to 20,941.18, 28,898.50 and 11,509.54 is: 15,882.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,941.18 : 28,898.50 = 11,509.54 : x
  2. Step 2: Convert to fraction form
    20,941.18/28,898.50 = 11,509.54/x
  3. Step 3: Cross multiply
    20,941.18x = 28,898.50 × 11,509.54
  4. Step 4: Simplify right side
    20,941.18x = 332,608,441.69
  5. Step 5: Solve for x
    x = 332,608,441.69/20,941.18
  6. Step 6: Final answer
    x = 15,882.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.