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Finding the Fourth Proportional to 19,008.20, 28,512.30 and 17,064.20

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Solution

The fourth proportional to 19,008.20, 28,512.30 and 17,064.20 is: 25,596.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,008.20 : 28,512.30 = 17,064.20 : x
  2. Step 2: Convert to fraction form
    19,008.20/28,512.30 = 17,064.20/x
  3. Step 3: Cross multiply
    19,008.20x = 28,512.30 × 17,064.20
  4. Step 4: Simplify right side
    19,008.20x = 486,539,589.66
  5. Step 5: Solve for x
    x = 486,539,589.66/19,008.20
  6. Step 6: Final answer
    x = 25,596.30

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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.