Home / 20,460.25-30,662.38-15,458.51

Finding the Fourth Proportional to 20,460.25, 30,662.38 and 15,458.51

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Solution

The fourth proportional to 20,460.25, 30,662.38 and 15,458.51 is: 23,166.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,460.25 : 30,662.38 = 15,458.51 : x
  2. Step 2: Convert to fraction form
    20,460.25/30,662.38 = 15,458.51/x
  3. Step 3: Cross multiply
    20,460.25x = 30,662.38 × 15,458.51
  4. Step 4: Simplify right side
    20,460.25x = 473,994,630.56
  5. Step 5: Solve for x
    x = 473,994,630.56/20,460.25
  6. Step 6: Final answer
    x = 23,166.61

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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.