Home / 20,090.48-30,127.08-8,236.01

Finding the Fourth Proportional to 20,090.48, 30,127.08 and 8,236.01

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Solution

The fourth proportional to 20,090.48, 30,127.08 and 8,236.01 is: 12,350.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,090.48 : 30,127.08 = 8,236.01 : x
  2. Step 2: Convert to fraction form
    20,090.48/30,127.08 = 8,236.01/x
  3. Step 3: Cross multiply
    20,090.48x = 30,127.08 × 8,236.01
  4. Step 4: Simplify right side
    20,090.48x = 248,126,932.15
  5. Step 5: Solve for x
    x = 248,126,932.15/20,090.48
  6. Step 6: Final answer
    x = 12,350.47

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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.