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Finding the Fourth Proportional to 25,259.52, 37,892.11 and 20,619.03

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Solution

The fourth proportional to 25,259.52, 37,892.11 and 20,619.03 is: 30,930.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,259.52 : 37,892.11 = 20,619.03 : x
  2. Step 2: Convert to fraction form
    25,259.52/37,892.11 = 20,619.03/x
  3. Step 3: Cross multiply
    25,259.52x = 37,892.11 × 20,619.03
  4. Step 4: Simplify right side
    25,259.52x = 781,298,436.53
  5. Step 5: Solve for x
    x = 781,298,436.53/25,259.52
  6. Step 6: Final answer
    x = 30,930.86

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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.