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Finding the Fourth Proportional to 62,838, 94,274.01 and 21,285

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Solution

The fourth proportional to 62,838, 94,274.01 and 21,285 is: 31,933.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,838 : 94,274.01 = 21,285 : x
  2. Step 2: Convert to fraction form
    62,838/94,274.01 = 21,285/x
  3. Step 3: Cross multiply
    62,838x = 94,274.01 × 21,285
  4. Step 4: Simplify right side
    62,838x = 2,006,622,302.85
  5. Step 5: Solve for x
    x = 2,006,622,302.85/62,838
  6. Step 6: Final answer
    x = 31,933.26

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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.