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Finding the Fourth Proportional to 30,149.58, 45,224.49 and 12,607.11

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Solution

The fourth proportional to 30,149.58, 45,224.49 and 12,607.11 is: 18,910.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,149.58 : 45,224.49 = 12,607.11 : x
  2. Step 2: Convert to fraction form
    30,149.58/45,224.49 = 12,607.11/x
  3. Step 3: Cross multiply
    30,149.58x = 45,224.49 × 12,607.11
  4. Step 4: Simplify right side
    30,149.58x = 570,150,167.40
  5. Step 5: Solve for x
    x = 570,150,167.40/30,149.58
  6. Step 6: Final answer
    x = 18,910.71

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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.