Home / 20,122.02-30,182.22-10,261.08

Finding the Fourth Proportional to 20,122.02, 30,182.22 and 10,261.08

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Solution

The fourth proportional to 20,122.02, 30,182.22 and 10,261.08 is: 15,391.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,122.02 : 30,182.22 = 10,261.08 : x
  2. Step 2: Convert to fraction form
    20,122.02/30,182.22 = 10,261.08/x
  3. Step 3: Cross multiply
    20,122.02x = 30,182.22 × 10,261.08
  4. Step 4: Simplify right side
    20,122.02x = 309,702,174.00
  5. Step 5: Solve for x
    x = 309,702,174.00/20,122.02
  6. Step 6: Final answer
    x = 15,391.21

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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.