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Finding the Fourth Proportional to 30,080.76, 45,096.78 and 12,563.68

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Solution

The fourth proportional to 30,080.76, 45,096.78 and 12,563.68 is: 18,835.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,080.76 : 45,096.78 = 12,563.68 : x
  2. Step 2: Convert to fraction form
    30,080.76/45,096.78 = 12,563.68/x
  3. Step 3: Cross multiply
    30,080.76x = 45,096.78 × 12,563.68
  4. Step 4: Simplify right side
    30,080.76x = 566,581,512.95
  5. Step 5: Solve for x
    x = 566,581,512.95/30,080.76
  6. Step 6: Final answer
    x = 18,835.35

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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.