Home / 20,862.79-31,296.11-6,822.89

Finding the Fourth Proportional to 20,862.79, 31,296.11 and 6,822.89

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Solution

The fourth proportional to 20,862.79, 31,296.11 and 6,822.89 is: 10,234.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,862.79 : 31,296.11 = 6,822.89 : x
  2. Step 2: Convert to fraction form
    20,862.79/31,296.11 = 6,822.89/x
  3. Step 3: Cross multiply
    20,862.79x = 31,296.11 × 6,822.89
  4. Step 4: Simplify right side
    20,862.79x = 213,529,803.60
  5. Step 5: Solve for x
    x = 213,529,803.60/20,862.79
  6. Step 6: Final answer
    x = 10,234.96

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1.5x scale

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.