Home / 20,275.92-30,388.77-11,484.18

Finding the Fourth Proportional to 20,275.92, 30,388.77 and 11,484.18

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Solution

The fourth proportional to 20,275.92, 30,388.77 and 11,484.18 is: 17,212.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,275.92 : 30,388.77 = 11,484.18 : x
  2. Step 2: Convert to fraction form
    20,275.92/30,388.77 = 11,484.18/x
  3. Step 3: Cross multiply
    20,275.92x = 30,388.77 × 11,484.18
  4. Step 4: Simplify right side
    20,275.92x = 348,990,104.66
  5. Step 5: Solve for x
    x = 348,990,104.66/20,275.92
  6. Step 6: Final answer
    x = 17,212.05

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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.