Home / 30,390.35-45,578.24-9,613.85

Finding the Fourth Proportional to 30,390.35, 45,578.24 and 9,613.85

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Solution

The fourth proportional to 30,390.35, 45,578.24 and 9,613.85 is: 14,418.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,390.35 : 45,578.24 = 9,613.85 : x
  2. Step 2: Convert to fraction form
    30,390.35/45,578.24 = 9,613.85/x
  3. Step 3: Cross multiply
    30,390.35x = 45,578.24 × 9,613.85
  4. Step 4: Simplify right side
    30,390.35x = 438,182,362.62
  5. Step 5: Solve for x
    x = 438,182,362.62/30,390.35
  6. Step 6: Final answer
    x = 14,418.47

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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.