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Finding the Fourth Proportional to 26,415.59, 36,453.04 and 15,667.70

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Solution

The fourth proportional to 26,415.59, 36,453.04 and 15,667.70 is: 21,621.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,415.59 : 36,453.04 = 15,667.70 : x
  2. Step 2: Convert to fraction form
    26,415.59/36,453.04 = 15,667.70/x
  3. Step 3: Cross multiply
    26,415.59x = 36,453.04 × 15,667.70
  4. Step 4: Simplify right side
    26,415.59x = 571,135,073.37
  5. Step 5: Solve for x
    x = 571,135,073.37/26,415.59
  6. Step 6: Final answer
    x = 21,621.14

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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.