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Finding the Fourth Proportional to 29,247.90, 40,362.03 and 15,819.03

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Solution

The fourth proportional to 29,247.90, 40,362.03 and 15,819.03 is: 21,830.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,247.90 : 40,362.03 = 15,819.03 : x
  2. Step 2: Convert to fraction form
    29,247.90/40,362.03 = 15,819.03/x
  3. Step 3: Cross multiply
    29,247.90x = 40,362.03 × 15,819.03
  4. Step 4: Simplify right side
    29,247.90x = 638,488,163.43
  5. Step 5: Solve for x
    x = 638,488,163.43/29,247.90
  6. Step 6: Final answer
    x = 21,830.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.