Home / 20,131.02-30,195.72-10,270.08

Finding the Fourth Proportional to 20,131.02, 30,195.72 and 10,270.08

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Solution

The fourth proportional to 20,131.02, 30,195.72 and 10,270.08 is: 15,404.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,131.02 : 30,195.72 = 10,270.08 : x
  2. Step 2: Convert to fraction form
    20,131.02/30,195.72 = 10,270.08/x
  3. Step 3: Cross multiply
    20,131.02x = 30,195.72 × 10,270.08
  4. Step 4: Simplify right side
    20,131.02x = 310,112,460.06
  5. Step 5: Solve for x
    x = 310,112,460.06/20,131.02
  6. Step 6: Final answer
    x = 15,404.71

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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.