Home / 20,436.26-30,654.34-5,645.08

Finding the Fourth Proportional to 20,436.26, 30,654.34 and 5,645.08

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Solution

The fourth proportional to 20,436.26, 30,654.34 and 5,645.08 is: 8,467.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,436.26 : 30,654.34 = 5,645.08 : x
  2. Step 2: Convert to fraction form
    20,436.26/30,654.34 = 5,645.08/x
  3. Step 3: Cross multiply
    20,436.26x = 30,654.34 × 5,645.08
  4. Step 4: Simplify right side
    20,436.26x = 173,046,174.81
  5. Step 5: Solve for x
    x = 173,046,174.81/20,436.26
  6. Step 6: Final answer
    x = 8,467.60

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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.