Home / 21,358.76-32,046.44-8,875.60

Finding the Fourth Proportional to 21,358.76, 32,046.44 and 8,875.60

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Solution

The fourth proportional to 21,358.76, 32,046.44 and 8,875.60 is: 13,316.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,358.76 : 32,046.44 = 8,875.60 : x
  2. Step 2: Convert to fraction form
    21,358.76/32,046.44 = 8,875.60/x
  3. Step 3: Cross multiply
    21,358.76x = 32,046.44 × 8,875.60
  4. Step 4: Simplify right side
    21,358.76x = 284,431,382.86
  5. Step 5: Solve for x
    x = 284,431,382.86/21,358.76
  6. Step 6: Final answer
    x = 13,316.85

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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.