Home / 20,256.41-30,387.90-8,569.73

Finding the Fourth Proportional to 20,256.41, 30,387.90 and 8,569.73

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Solution

The fourth proportional to 20,256.41, 30,387.90 and 8,569.73 is: 12,855.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,256.41 : 30,387.90 = 8,569.73 : x
  2. Step 2: Convert to fraction form
    20,256.41/30,387.90 = 8,569.73/x
  3. Step 3: Cross multiply
    20,256.41x = 30,387.90 × 8,569.73
  4. Step 4: Simplify right side
    20,256.41x = 260,416,098.27
  5. Step 5: Solve for x
    x = 260,416,098.27/20,256.41
  6. Step 6: Final answer
    x = 12,855.98

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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.