Home / 20,484.96-30,734.64-11,727.20

Finding the Fourth Proportional to 20,484.96, 30,734.64 and 11,727.20

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Solution

The fourth proportional to 20,484.96, 30,734.64 and 11,727.20 is: 17,594.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,484.96 : 30,734.64 = 11,727.20 : x
  2. Step 2: Convert to fraction form
    20,484.96/30,734.64 = 11,727.20/x
  3. Step 3: Cross multiply
    20,484.96x = 30,734.64 × 11,727.20
  4. Step 4: Simplify right side
    20,484.96x = 360,431,270.21
  5. Step 5: Solve for x
    x = 360,431,270.21/20,484.96
  6. Step 6: Final answer
    x = 17,594.92

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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.