Home / 30,149.38-45,217.55-19,041.22

Finding the Fourth Proportional to 30,149.38, 45,217.55 and 19,041.22

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Solution

The fourth proportional to 30,149.38, 45,217.55 and 19,041.22 is: 28,557.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,149.38 : 45,217.55 = 19,041.22 : x
  2. Step 2: Convert to fraction form
    30,149.38/45,217.55 = 19,041.22/x
  3. Step 3: Cross multiply
    30,149.38x = 45,217.55 × 19,041.22
  4. Step 4: Simplify right side
    30,149.38x = 860,997,222.20
  5. Step 5: Solve for x
    x = 860,997,222.20/30,149.38
  6. Step 6: Final answer
    x = 28,557.71

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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.