Home / 30,610.06-45,909.70-8,418.08

Finding the Fourth Proportional to 30,610.06, 45,909.70 and 8,418.08

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Solution

The fourth proportional to 30,610.06, 45,909.70 and 8,418.08 is: 12,625.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,610.06 : 45,909.70 = 8,418.08 : x
  2. Step 2: Convert to fraction form
    30,610.06/45,909.70 = 8,418.08/x
  3. Step 3: Cross multiply
    30,610.06x = 45,909.70 × 8,418.08
  4. Step 4: Simplify right side
    30,610.06x = 386,471,527.38
  5. Step 5: Solve for x
    x = 386,471,527.38/30,610.06
  6. Step 6: Final answer
    x = 12,625.64

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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.