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Finding the Fourth Proportional to 25,349.39, 34,970.52 and 16,399.78

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Solution

The fourth proportional to 25,349.39, 34,970.52 and 16,399.78 is: 22,624.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,349.39 : 34,970.52 = 16,399.78 : x
  2. Step 2: Convert to fraction form
    25,349.39/34,970.52 = 16,399.78/x
  3. Step 3: Cross multiply
    25,349.39x = 34,970.52 × 16,399.78
  4. Step 4: Simplify right side
    25,349.39x = 573,508,834.49
  5. Step 5: Solve for x
    x = 573,508,834.49/25,349.39
  6. Step 6: Final answer
    x = 22,624.17

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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.