Home / 19,995.24-27,589.68-11,500.32

Finding the Fourth Proportional to 19,995.24, 27,589.68 and 11,500.32

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Solution

The fourth proportional to 19,995.24, 27,589.68 and 11,500.32 is: 15,868.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,995.24 : 27,589.68 = 11,500.32 : x
  2. Step 2: Convert to fraction form
    19,995.24/27,589.68 = 11,500.32/x
  3. Step 3: Cross multiply
    19,995.24x = 27,589.68 × 11,500.32
  4. Step 4: Simplify right side
    19,995.24x = 317,290,148.70
  5. Step 5: Solve for x
    x = 317,290,148.70/19,995.24
  6. Step 6: Final answer
    x = 15,868.28

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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.