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Finding the Fourth Proportional to 30,902.72, 46,355.93 and 8,717.99

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Solution

The fourth proportional to 30,902.72, 46,355.93 and 8,717.99 is: 13,077.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,902.72 : 46,355.93 = 8,717.99 : x
  2. Step 2: Convert to fraction form
    30,902.72/46,355.93 = 8,717.99/x
  3. Step 3: Cross multiply
    30,902.72x = 46,355.93 × 8,717.99
  4. Step 4: Simplify right side
    30,902.72x = 404,130,490.59
  5. Step 5: Solve for x
    x = 404,130,490.59/30,902.72
  6. Step 6: Final answer
    x = 13,077.51

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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.