Home / 21,845.34-32,714.55-10,161.90

Finding the Fourth Proportional to 21,845.34, 32,714.55 and 10,161.90

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Solution

The fourth proportional to 21,845.34, 32,714.55 and 10,161.90 is: 15,217.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,845.34 : 32,714.55 = 10,161.90 : x
  2. Step 2: Convert to fraction form
    21,845.34/32,714.55 = 10,161.90/x
  3. Step 3: Cross multiply
    21,845.34x = 32,714.55 × 10,161.90
  4. Step 4: Simplify right side
    21,845.34x = 332,441,985.65
  5. Step 5: Solve for x
    x = 332,441,985.65/21,845.34
  6. Step 6: Final answer
    x = 15,217.98

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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.