Home / 20,450.79-30,654.27-10,580.13

Finding the Fourth Proportional to 20,450.79, 30,654.27 and 10,580.13

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Solution

The fourth proportional to 20,450.79, 30,654.27 and 10,580.13 is: 15,858.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,450.79 : 30,654.27 = 10,580.13 : x
  2. Step 2: Convert to fraction form
    20,450.79/30,654.27 = 10,580.13/x
  3. Step 3: Cross multiply
    20,450.79x = 30,654.27 × 10,580.13
  4. Step 4: Simplify right side
    20,450.79x = 324,326,161.66
  5. Step 5: Solve for x
    x = 324,326,161.66/20,450.79
  6. Step 6: Final answer
    x = 15,858.86

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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.