Home / 20,423.48-30,627.66-7,272.32

Finding the Fourth Proportional to 20,423.48, 30,627.66 and 7,272.32

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Solution

The fourth proportional to 20,423.48, 30,627.66 and 7,272.32 is: 10,905.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,423.48 : 30,627.66 = 7,272.32 : x
  2. Step 2: Convert to fraction form
    20,423.48/30,627.66 = 7,272.32/x
  3. Step 3: Cross multiply
    20,423.48x = 30,627.66 × 7,272.32
  4. Step 4: Simplify right side
    20,423.48x = 222,734,144.37
  5. Step 5: Solve for x
    x = 222,734,144.37/20,423.48
  6. Step 6: Final answer
    x = 10,905.79

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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.