Home / 36,513.45-54,788.40-20,730.60

Finding the Fourth Proportional to 36,513.45, 54,788.40 and 20,730.60

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Solution

The fourth proportional to 36,513.45, 54,788.40 and 20,730.60 is: 31,106.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,513.45 : 54,788.40 = 20,730.60 : x
  2. Step 2: Convert to fraction form
    36,513.45/54,788.40 = 20,730.60/x
  3. Step 3: Cross multiply
    36,513.45x = 54,788.40 × 20,730.60
  4. Step 4: Simplify right side
    36,513.45x = 1,135,796,405.04
  5. Step 5: Solve for x
    x = 1,135,796,405.04/36,513.45
  6. Step 6: Final answer
    x = 31,106.25

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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.