Home / 20,664.16-30,996.59-8,977.38

Finding the Fourth Proportional to 20,664.16, 30,996.59 and 8,977.38

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Solution

The fourth proportional to 20,664.16, 30,996.59 and 8,977.38 is: 13,466.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,664.16 : 30,996.59 = 8,977.38 : x
  2. Step 2: Convert to fraction form
    20,664.16/30,996.59 = 8,977.38/x
  3. Step 3: Cross multiply
    20,664.16x = 30,996.59 × 8,977.38
  4. Step 4: Simplify right side
    20,664.16x = 278,268,167.13
  5. Step 5: Solve for x
    x = 278,268,167.13/20,664.16
  6. Step 6: Final answer
    x = 13,466.22

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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.