Home / 13,609.35-20,322.77-13,543.74

Finding the Fourth Proportional to 13,609.35, 20,322.77 and 13,543.74

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Solution

The fourth proportional to 13,609.35, 20,322.77 and 13,543.74 is: 20,224.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609.35 : 20,322.77 = 13,543.74 : x
  2. Step 2: Convert to fraction form
    13,609.35/20,322.77 = 13,543.74/x
  3. Step 3: Cross multiply
    13,609.35x = 20,322.77 × 13,543.74
  4. Step 4: Simplify right side
    13,609.35x = 275,246,245.24
  5. Step 5: Solve for x
    x = 275,246,245.24/13,609.35
  6. Step 6: Final answer
    x = 20,224.79

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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.