Home / 20,664.28-30,977.52-8,973.28

Finding the Fourth Proportional to 20,664.28, 30,977.52 and 8,973.28

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Solution

The fourth proportional to 20,664.28, 30,977.52 and 8,973.28 is: 13,451.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,664.28 : 30,977.52 = 8,973.28 : x
  2. Step 2: Convert to fraction form
    20,664.28/30,977.52 = 8,973.28/x
  3. Step 3: Cross multiply
    20,664.28x = 30,977.52 × 8,973.28
  4. Step 4: Simplify right side
    20,664.28x = 277,969,960.67
  5. Step 5: Solve for x
    x = 277,969,960.67/20,664.28
  6. Step 6: Final answer
    x = 13,451.71

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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.