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Finding the Fourth Proportional to 19,141.80, 28,712.70 and 17,027.70

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Solution

The fourth proportional to 19,141.80, 28,712.70 and 17,027.70 is: 25,541.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,141.80 : 28,712.70 = 17,027.70 : x
  2. Step 2: Convert to fraction form
    19,141.80/28,712.70 = 17,027.70/x
  3. Step 3: Cross multiply
    19,141.80x = 28,712.70 × 17,027.70
  4. Step 4: Simplify right side
    19,141.80x = 488,911,241.79
  5. Step 5: Solve for x
    x = 488,911,241.79/19,141.80
  6. Step 6: Final answer
    x = 25,541.55

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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.