Home / 20,512.30-30,746.92-11,616.51

Finding the Fourth Proportional to 20,512.30, 30,746.92 and 11,616.51

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Solution

The fourth proportional to 20,512.30, 30,746.92 and 11,616.51 is: 17,412.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512.30 : 30,746.92 = 11,616.51 : x
  2. Step 2: Convert to fraction form
    20,512.30/30,746.92 = 11,616.51/x
  3. Step 3: Cross multiply
    20,512.30x = 30,746.92 × 11,616.51
  4. Step 4: Simplify right side
    20,512.30x = 357,171,903.65
  5. Step 5: Solve for x
    x = 357,171,903.65/20,512.30
  6. Step 6: Final answer
    x = 17,412.57

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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.