Home / 20,239.02-30,356.46-5,447.34

Finding the Fourth Proportional to 20,239.02, 30,356.46 and 5,447.34

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Solution

The fourth proportional to 20,239.02, 30,356.46 and 5,447.34 is: 8,170.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,239.02 : 30,356.46 = 5,447.34 : x
  2. Step 2: Convert to fraction form
    20,239.02/30,356.46 = 5,447.34/x
  3. Step 3: Cross multiply
    20,239.02x = 30,356.46 × 5,447.34
  4. Step 4: Simplify right side
    20,239.02x = 165,361,958.82
  5. Step 5: Solve for x
    x = 165,361,958.82/20,239.02
  6. Step 6: Final answer
    x = 8,170.45

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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.