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Finding the Fourth Proportional to 30,063.44, 45,095.16 and 18,986.96

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Solution

The fourth proportional to 30,063.44, 45,095.16 and 18,986.96 is: 28,480.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,063.44 : 45,095.16 = 18,986.96 : x
  2. Step 2: Convert to fraction form
    30,063.44/45,095.16 = 18,986.96/x
  3. Step 3: Cross multiply
    30,063.44x = 45,095.16 × 18,986.96
  4. Step 4: Simplify right side
    30,063.44x = 856,219,773.64
  5. Step 5: Solve for x
    x = 856,219,773.64/30,063.44
  6. Step 6: Final answer
    x = 28,480.44

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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.