Home / 20,619.48-30,914.10-6,571.42

Finding the Fourth Proportional to 20,619.48, 30,914.10 and 6,571.42

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Solution

The fourth proportional to 20,619.48, 30,914.10 and 6,571.42 is: 9,852.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,619.48 : 30,914.10 = 6,571.42 : x
  2. Step 2: Convert to fraction form
    20,619.48/30,914.10 = 6,571.42/x
  3. Step 3: Cross multiply
    20,619.48x = 30,914.10 × 6,571.42
  4. Step 4: Simplify right side
    20,619.48x = 203,149,535.02
  5. Step 5: Solve for x
    x = 203,149,535.02/20,619.48
  6. Step 6: Final answer
    x = 9,852.31

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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.