Home / 30,115.44-45,180.48-9,339.12

Finding the Fourth Proportional to 30,115.44, 45,180.48 and 9,339.12

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Solution

The fourth proportional to 30,115.44, 45,180.48 and 9,339.12 is: 14,010.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,115.44 : 45,180.48 = 9,339.12 : x
  2. Step 2: Convert to fraction form
    30,115.44/45,180.48 = 9,339.12/x
  3. Step 3: Cross multiply
    30,115.44x = 45,180.48 × 9,339.12
  4. Step 4: Simplify right side
    30,115.44x = 421,945,924.38
  5. Step 5: Solve for x
    x = 421,945,924.38/30,115.44
  6. Step 6: Final answer
    x = 14,010.95

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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.