Home / 22,245.75-30,699.14-12,309.75

Finding the Fourth Proportional to 22,245.75, 30,699.14 and 12,309.75

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Solution

The fourth proportional to 22,245.75, 30,699.14 and 12,309.75 is: 16,987.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,245.75 : 30,699.14 = 12,309.75 : x
  2. Step 2: Convert to fraction form
    22,245.75/30,699.14 = 12,309.75/x
  3. Step 3: Cross multiply
    22,245.75x = 30,699.14 × 12,309.75
  4. Step 4: Simplify right side
    22,245.75x = 377,898,677.07
  5. Step 5: Solve for x
    x = 377,898,677.07/22,245.75
  6. Step 6: Final answer
    x = 16,987.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.