Home / 20,019.02-27,617.49-11,519.28

Finding the Fourth Proportional to 20,019.02, 27,617.49 and 11,519.28

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Solution

The fourth proportional to 20,019.02, 27,617.49 and 11,519.28 is: 15,891.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,019.02 : 27,617.49 = 11,519.28 : x
  2. Step 2: Convert to fraction form
    20,019.02/27,617.49 = 11,519.28/x
  3. Step 3: Cross multiply
    20,019.02x = 27,617.49 × 11,519.28
  4. Step 4: Simplify right side
    20,019.02x = 318,133,600.21
  5. Step 5: Solve for x
    x = 318,133,600.21/20,019.02
  6. Step 6: Final answer
    x = 15,891.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.