Home / 19,680.39-29,540.75-15,345.27

Finding the Fourth Proportional to 19,680.39, 29,540.75 and 15,345.27

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Solution

The fourth proportional to 19,680.39, 29,540.75 and 15,345.27 is: 23,033.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,680.39 : 29,540.75 = 15,345.27 : x
  2. Step 2: Convert to fraction form
    19,680.39/29,540.75 = 15,345.27/x
  3. Step 3: Cross multiply
    19,680.39x = 29,540.75 × 15,345.27
  4. Step 4: Simplify right side
    19,680.39x = 453,310,708.03
  5. Step 5: Solve for x
    x = 453,310,708.03/19,680.39
  6. Step 6: Final answer
    x = 23,033.62

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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.