Home / 20,445.96-30,519.74-17,542.92

Finding the Fourth Proportional to 20,445.96, 30,519.74 and 17,542.92

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Solution

The fourth proportional to 20,445.96, 30,519.74 and 17,542.92 is: 26,186.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,445.96 : 30,519.74 = 17,542.92 : x
  2. Step 2: Convert to fraction form
    20,445.96/30,519.74 = 17,542.92/x
  3. Step 3: Cross multiply
    20,445.96x = 30,519.74 × 17,542.92
  4. Step 4: Simplify right side
    20,445.96x = 535,405,269.53
  5. Step 5: Solve for x
    x = 535,405,269.53/20,445.96
  6. Step 6: Final answer
    x = 26,186.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.