Home / 30,487.78-45,734.24-11,767.06

Finding the Fourth Proportional to 30,487.78, 45,734.24 and 11,767.06

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Solution

The fourth proportional to 30,487.78, 45,734.24 and 11,767.06 is: 17,651.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,487.78 : 45,734.24 = 11,767.06 : x
  2. Step 2: Convert to fraction form
    30,487.78/45,734.24 = 11,767.06/x
  3. Step 3: Cross multiply
    30,487.78x = 45,734.24 × 11,767.06
  4. Step 4: Simplify right side
    30,487.78x = 538,157,546.13
  5. Step 5: Solve for x
    x = 538,157,546.13/30,487.78
  6. Step 6: Final answer
    x = 17,651.58

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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.