Home / 30,321.18-45,481.77-9,260.37

Finding the Fourth Proportional to 30,321.18, 45,481.77 and 9,260.37

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Solution

The fourth proportional to 30,321.18, 45,481.77 and 9,260.37 is: 13,890.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,321.18 : 45,481.77 = 9,260.37 : x
  2. Step 2: Convert to fraction form
    30,321.18/45,481.77 = 9,260.37/x
  3. Step 3: Cross multiply
    30,321.18x = 45,481.77 × 9,260.37
  4. Step 4: Simplify right side
    30,321.18x = 421,178,018.45
  5. Step 5: Solve for x
    x = 421,178,018.45/30,321.18
  6. Step 6: Final answer
    x = 13,890.56

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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.