Home / 20,028.06-30,022.47-11,147.63

Finding the Fourth Proportional to 20,028.06, 30,022.47 and 11,147.63

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Solution

The fourth proportional to 20,028.06, 30,022.47 and 11,147.63 is: 16,710.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028.06 : 30,022.47 = 11,147.63 : x
  2. Step 2: Convert to fraction form
    20,028.06/30,022.47 = 11,147.63/x
  3. Step 3: Cross multiply
    20,028.06x = 30,022.47 × 11,147.63
  4. Step 4: Simplify right side
    20,028.06x = 334,679,387.25
  5. Step 5: Solve for x
    x = 334,679,387.25/20,028.06
  6. Step 6: Final answer
    x = 16,710.52

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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.