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Finding the Fourth Proportional to 19,452.34, 29,201.64 and 18,660.16

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Solution

The fourth proportional to 19,452.34, 29,201.64 and 18,660.16 is: 28,012.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,452.34 : 29,201.64 = 18,660.16 : x
  2. Step 2: Convert to fraction form
    19,452.34/29,201.64 = 18,660.16/x
  3. Step 3: Cross multiply
    19,452.34x = 29,201.64 × 18,660.16
  4. Step 4: Simplify right side
    19,452.34x = 544,907,274.66
  5. Step 5: Solve for x
    x = 544,907,274.66/19,452.34
  6. Step 6: Final answer
    x = 28,012.43

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1.5x scale

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.