Home / 20,213.98-30,326.81-8,365.56

Finding the Fourth Proportional to 20,213.98, 30,326.81 and 8,365.56

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Solution

The fourth proportional to 20,213.98, 30,326.81 and 8,365.56 is: 12,550.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213.98 : 30,326.81 = 8,365.56 : x
  2. Step 2: Convert to fraction form
    20,213.98/30,326.81 = 8,365.56/x
  3. Step 3: Cross multiply
    20,213.98x = 30,326.81 × 8,365.56
  4. Step 4: Simplify right side
    20,213.98x = 253,700,820.07
  5. Step 5: Solve for x
    x = 253,700,820.07/20,213.98
  6. Step 6: Final answer
    x = 12,550.76

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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.