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Finding the Fourth Proportional to 25,510.78, 35,203.30 and 14,179.90

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Solution

The fourth proportional to 25,510.78, 35,203.30 and 14,179.90 is: 19,567.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,510.78 : 35,203.30 = 14,179.90 : x
  2. Step 2: Convert to fraction form
    25,510.78/35,203.30 = 14,179.90/x
  3. Step 3: Cross multiply
    25,510.78x = 35,203.30 × 14,179.90
  4. Step 4: Simplify right side
    25,510.78x = 499,179,273.67
  5. Step 5: Solve for x
    x = 499,179,273.67/25,510.78
  6. Step 6: Final answer
    x = 19,567.39

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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.