Home / 19,979.52-27,539.20-15,993.60

Finding the Fourth Proportional to 19,979.52, 27,539.20 and 15,993.60

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Solution

The fourth proportional to 19,979.52, 27,539.20 and 15,993.60 is: 22,045.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,979.52 : 27,539.20 = 15,993.60 : x
  2. Step 2: Convert to fraction form
    19,979.52/27,539.20 = 15,993.60/x
  3. Step 3: Cross multiply
    19,979.52x = 27,539.20 × 15,993.60
  4. Step 4: Simplify right side
    19,979.52x = 440,450,949.12
  5. Step 5: Solve for x
    x = 440,450,949.12/19,979.52
  6. Step 6: Final answer
    x = 22,045.12

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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.