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Finding the Fourth Proportional to 20,370.04, 30,555.08 and 5,579.08

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Solution

The fourth proportional to 20,370.04, 30,555.08 and 5,579.08 is: 8,368.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,370.04 : 30,555.08 = 5,579.08 : x
  2. Step 2: Convert to fraction form
    20,370.04/30,555.08 = 5,579.08/x
  3. Step 3: Cross multiply
    20,370.04x = 30,555.08 × 5,579.08
  4. Step 4: Simplify right side
    20,370.04x = 170,469,235.73
  5. Step 5: Solve for x
    x = 170,469,235.73/20,370.04
  6. Step 6: Final answer
    x = 8,368.63

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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.