Home / 20,090.56-30,135.44-6,239.52

Finding the Fourth Proportional to 20,090.56, 30,135.44 and 6,239.52

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Solution

The fourth proportional to 20,090.56, 30,135.44 and 6,239.52 is: 9,359.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,090.56 : 30,135.44 = 6,239.52 : x
  2. Step 2: Convert to fraction form
    20,090.56/30,135.44 = 6,239.52/x
  3. Step 3: Cross multiply
    20,090.56x = 30,135.44 × 6,239.52
  4. Step 4: Simplify right side
    20,090.56x = 188,030,680.59
  5. Step 5: Solve for x
    x = 188,030,680.59/20,090.56
  6. Step 6: Final answer
    x = 9,359.16

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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.