Home / 19,786.14-29,680.76-5,746.40

Finding the Fourth Proportional to 19,786.14, 29,680.76 and 5,746.40

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Solution

The fourth proportional to 19,786.14, 29,680.76 and 5,746.40 is: 8,620.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,786.14 : 29,680.76 = 5,746.40 : x
  2. Step 2: Convert to fraction form
    19,786.14/29,680.76 = 5,746.40/x
  3. Step 3: Cross multiply
    19,786.14x = 29,680.76 × 5,746.40
  4. Step 4: Simplify right side
    19,786.14x = 170,557,504.90
  5. Step 5: Solve for x
    x = 170,557,504.90/19,786.14
  6. Step 6: Final answer
    x = 8,620.05

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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.