Home / 20,558.48-30,809.13-11,544.63

Finding the Fourth Proportional to 20,558.48, 30,809.13 and 11,544.63

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Solution

The fourth proportional to 20,558.48, 30,809.13 and 11,544.63 is: 17,300.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,558.48 : 30,809.13 = 11,544.63 : x
  2. Step 2: Convert to fraction form
    20,558.48/30,809.13 = 11,544.63/x
  3. Step 3: Cross multiply
    20,558.48x = 30,809.13 × 11,544.63
  4. Step 4: Simplify right side
    20,558.48x = 355,679,945.05
  5. Step 5: Solve for x
    x = 355,679,945.05/20,558.48
  6. Step 6: Final answer
    x = 17,300.88

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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.