Home / 20,563.79-30,858.44-9,472.05

Finding the Fourth Proportional to 20,563.79, 30,858.44 and 9,472.05

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Solution

The fourth proportional to 20,563.79, 30,858.44 and 9,472.05 is: 14,213.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,563.79 : 30,858.44 = 9,472.05 : x
  2. Step 2: Convert to fraction form
    20,563.79/30,858.44 = 9,472.05/x
  3. Step 3: Cross multiply
    20,563.79x = 30,858.44 × 9,472.05
  4. Step 4: Simplify right side
    20,563.79x = 292,292,639.24
  5. Step 5: Solve for x
    x = 292,292,639.24/20,563.79
  6. Step 6: Final answer
    x = 14,213.95

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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.