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Finding the Fourth Proportional to 25,170.71, 34,735.98 and 13,840.70

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Solution

The fourth proportional to 25,170.71, 34,735.98 and 13,840.70 is: 19,100.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,170.71 : 34,735.98 = 13,840.70 : x
  2. Step 2: Convert to fraction form
    25,170.71/34,735.98 = 13,840.70/x
  3. Step 3: Cross multiply
    25,170.71x = 34,735.98 × 13,840.70
  4. Step 4: Simplify right side
    25,170.71x = 480,770,104.71
  5. Step 5: Solve for x
    x = 480,770,104.71/25,170.71
  6. Step 6: Final answer
    x = 19,100.38

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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.