Home / 20,276.76-30,412.82-5,484.80

Finding the Fourth Proportional to 20,276.76, 30,412.82 and 5,484.80

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Solution

The fourth proportional to 20,276.76, 30,412.82 and 5,484.80 is: 8,226.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,276.76 : 30,412.82 = 5,484.80 : x
  2. Step 2: Convert to fraction form
    20,276.76/30,412.82 = 5,484.80/x
  3. Step 3: Cross multiply
    20,276.76x = 30,412.82 × 5,484.80
  4. Step 4: Simplify right side
    20,276.76x = 166,808,235.14
  5. Step 5: Solve for x
    x = 166,808,235.14/20,276.76
  6. Step 6: Final answer
    x = 8,226.57

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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.