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Finding the Fourth Proportional to 27,285.30, 40,927.95 and 18,537.30

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Solution

The fourth proportional to 27,285.30, 40,927.95 and 18,537.30 is: 27,805.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,285.30 : 40,927.95 = 18,537.30 : x
  2. Step 2: Convert to fraction form
    27,285.30/40,927.95 = 18,537.30/x
  3. Step 3: Cross multiply
    27,285.30x = 40,927.95 × 18,537.30
  4. Step 4: Simplify right side
    27,285.30x = 758,693,687.54
  5. Step 5: Solve for x
    x = 758,693,687.54/27,285.30
  6. Step 6: Final answer
    x = 27,805.95

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1.5x scale

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.