Home / 20,753.85-31,136.04-5,963.79

Finding the Fourth Proportional to 20,753.85, 31,136.04 and 5,963.79

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Solution

The fourth proportional to 20,753.85, 31,136.04 and 5,963.79 is: 8,947.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,753.85 : 31,136.04 = 5,963.79 : x
  2. Step 2: Convert to fraction form
    20,753.85/31,136.04 = 5,963.79/x
  3. Step 3: Cross multiply
    20,753.85x = 31,136.04 × 5,963.79
  4. Step 4: Simplify right side
    20,753.85x = 185,688,803.99
  5. Step 5: Solve for x
    x = 185,688,803.99/20,753.85
  6. Step 6: Final answer
    x = 8,947.20

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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.