Home / 20,381.96-30,573.26-9,288.20

Finding the Fourth Proportional to 20,381.96, 30,573.26 and 9,288.20

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Solution

The fourth proportional to 20,381.96, 30,573.26 and 9,288.20 is: 13,932.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,381.96 : 30,573.26 = 9,288.20 : x
  2. Step 2: Convert to fraction form
    20,381.96/30,573.26 = 9,288.20/x
  3. Step 3: Cross multiply
    20,381.96x = 30,573.26 × 9,288.20
  4. Step 4: Simplify right side
    20,381.96x = 283,970,553.53
  5. Step 5: Solve for x
    x = 283,970,553.53/20,381.96
  6. Step 6: Final answer
    x = 13,932.45

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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.