Home / 20,563.60-30,845.31-4,981.27

Finding the Fourth Proportional to 20,563.60, 30,845.31 and 4,981.27

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Solution

The fourth proportional to 20,563.60, 30,845.31 and 4,981.27 is: 7,471.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,563.60 : 30,845.31 = 4,981.27 : x
  2. Step 2: Convert to fraction form
    20,563.60/30,845.31 = 4,981.27/x
  3. Step 3: Cross multiply
    20,563.60x = 30,845.31 × 4,981.27
  4. Step 4: Simplify right side
    20,563.60x = 153,648,817.34
  5. Step 5: Solve for x
    x = 153,648,817.34/20,563.60
  6. Step 6: Final answer
    x = 7,471.88

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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.