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Finding the Fourth Proportional to 62,214, 93,321 and 18,438

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Solution

The fourth proportional to 62,214, 93,321 and 18,438 is: 27,657

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,214 : 93,321 = 18,438 : x
  2. Step 2: Convert to fraction form
    62,214/93,321 = 18,438/x
  3. Step 3: Cross multiply
    62,214x = 93,321 × 18,438
  4. Step 4: Simplify right side
    62,214x = 1,720,652,598
  5. Step 5: Solve for x
    x = 1,720,652,598/62,214
  6. Step 6: Final answer
    x = 27,657

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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.