Home / 20,241.52-30,365.94-9,153.43

Finding the Fourth Proportional to 20,241.52, 30,365.94 and 9,153.43

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Solution

The fourth proportional to 20,241.52, 30,365.94 and 9,153.43 is: 13,731.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,241.52 : 30,365.94 = 9,153.43 : x
  2. Step 2: Convert to fraction form
    20,241.52/30,365.94 = 9,153.43/x
  3. Step 3: Cross multiply
    20,241.52x = 30,365.94 × 9,153.43
  4. Step 4: Simplify right side
    20,241.52x = 277,952,506.17
  5. Step 5: Solve for x
    x = 277,952,506.17/20,241.52
  6. Step 6: Final answer
    x = 13,731.80

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1.5x scale

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.