Home / 21,617.76-32,435.10-8,467.86

Finding the Fourth Proportional to 21,617.76, 32,435.10 and 8,467.86

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Solution

The fourth proportional to 21,617.76, 32,435.10 and 8,467.86 is: 12,705.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,617.76 : 32,435.10 = 8,467.86 : x
  2. Step 2: Convert to fraction form
    21,617.76/32,435.10 = 8,467.86/x
  3. Step 3: Cross multiply
    21,617.76x = 32,435.10 × 8,467.86
  4. Step 4: Simplify right side
    21,617.76x = 274,655,885.89
  5. Step 5: Solve for x
    x = 274,655,885.89/21,617.76
  6. Step 6: Final answer
    x = 12,705.10

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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.