Home / 20,562.86-30,855.23-8,718.44

Finding the Fourth Proportional to 20,562.86, 30,855.23 and 8,718.44

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Solution

The fourth proportional to 20,562.86, 30,855.23 and 8,718.44 is: 13,082.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,562.86 : 30,855.23 = 8,718.44 : x
  2. Step 2: Convert to fraction form
    20,562.86/30,855.23 = 8,718.44/x
  3. Step 3: Cross multiply
    20,562.86x = 30,855.23 × 8,718.44
  4. Step 4: Simplify right side
    20,562.86x = 269,009,306.27
  5. Step 5: Solve for x
    x = 269,009,306.27/20,562.86
  6. Step 6: Final answer
    x = 13,082.29

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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.