Home / 20,571.48-30,847.32-8,713.08

Finding the Fourth Proportional to 20,571.48, 30,847.32 and 8,713.08

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Solution

The fourth proportional to 20,571.48, 30,847.32 and 8,713.08 is: 13,065.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,571.48 : 30,847.32 = 8,713.08 : x
  2. Step 2: Convert to fraction form
    20,571.48/30,847.32 = 8,713.08/x
  3. Step 3: Cross multiply
    20,571.48x = 30,847.32 × 8,713.08
  4. Step 4: Simplify right side
    20,571.48x = 268,775,166.95
  5. Step 5: Solve for x
    x = 268,775,166.95/20,571.48
  6. Step 6: Final answer
    x = 13,065.43

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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.