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Finding the Fourth Proportional to 26,362.80, 36,390.60 and 15,748.56

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Solution

The fourth proportional to 26,362.80, 36,390.60 and 15,748.56 is: 21,738.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,362.80 : 36,390.60 = 15,748.56 : x
  2. Step 2: Convert to fraction form
    26,362.80/36,390.60 = 15,748.56/x
  3. Step 3: Cross multiply
    26,362.80x = 36,390.60 × 15,748.56
  4. Step 4: Simplify right side
    26,362.80x = 573,099,547.54
  5. Step 5: Solve for x
    x = 573,099,547.54/26,362.80
  6. Step 6: Final answer
    x = 21,738.95

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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.