Home / 20,571.67-30,857.55-7,433.32

Finding the Fourth Proportional to 20,571.67, 30,857.55 and 7,433.32

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Solution

The fourth proportional to 20,571.67, 30,857.55 and 7,433.32 is: 11,150.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,571.67 : 30,857.55 = 7,433.32 : x
  2. Step 2: Convert to fraction form
    20,571.67/30,857.55 = 7,433.32/x
  3. Step 3: Cross multiply
    20,571.67x = 30,857.55 × 7,433.32
  4. Step 4: Simplify right side
    20,571.67x = 229,374,043.57
  5. Step 5: Solve for x
    x = 229,374,043.57/20,571.67
  6. Step 6: Final answer
    x = 11,150.00

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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.