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Finding the Fourth Proportional to 20,618.80, 30,924.77 and 5,824.34

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Solution

The fourth proportional to 20,618.80, 30,924.77 and 5,824.34 is: 8,735.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,618.80 : 30,924.77 = 5,824.34 : x
  2. Step 2: Convert to fraction form
    20,618.80/30,924.77 = 5,824.34/x
  3. Step 3: Cross multiply
    20,618.80x = 30,924.77 × 5,824.34
  4. Step 4: Simplify right side
    20,618.80x = 180,116,374.90
  5. Step 5: Solve for x
    x = 180,116,374.90/20,618.80
  6. Step 6: Final answer
    x = 8,735.54

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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.