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Finding the Fourth Proportional to 25,358.88, 34,945.92 and 18,271.92

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Solution

The fourth proportional to 25,358.88, 34,945.92 and 18,271.92 is: 25,179.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,358.88 : 34,945.92 = 18,271.92 : x
  2. Step 2: Convert to fraction form
    25,358.88/34,945.92 = 18,271.92/x
  3. Step 3: Cross multiply
    25,358.88x = 34,945.92 × 18,271.92
  4. Step 4: Simplify right side
    25,358.88x = 638,529,054.57
  5. Step 5: Solve for x
    x = 638,529,054.57/25,358.88
  6. Step 6: Final answer
    x = 25,179.70

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.