Home / 20,571.60-30,859.25-5,780.41

Finding the Fourth Proportional to 20,571.60, 30,859.25 and 5,780.41

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Solution

The fourth proportional to 20,571.60, 30,859.25 and 5,780.41 is: 8,671.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,571.60 : 30,859.25 = 5,780.41 : x
  2. Step 2: Convert to fraction form
    20,571.60/30,859.25 = 5,780.41/x
  3. Step 3: Cross multiply
    20,571.60x = 30,859.25 × 5,780.41
  4. Step 4: Simplify right side
    20,571.60x = 178,379,184.83
  5. Step 5: Solve for x
    x = 178,379,184.83/20,571.60
  6. Step 6: Final answer
    x = 8,671.14

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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.