Home / 30,125.67-45,171.55-12,351.43

Finding the Fourth Proportional to 30,125.67, 45,171.55 and 12,351.43

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Solution

The fourth proportional to 30,125.67, 45,171.55 and 12,351.43 is: 18,520.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,125.67 : 45,171.55 = 12,351.43 : x
  2. Step 2: Convert to fraction form
    30,125.67/45,171.55 = 12,351.43/x
  3. Step 3: Cross multiply
    30,125.67x = 45,171.55 × 12,351.43
  4. Step 4: Simplify right side
    30,125.67x = 557,933,237.82
  5. Step 5: Solve for x
    x = 557,933,237.82/30,125.67
  6. Step 6: Final answer
    x = 18,520.19

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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.