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Finding the Fourth Proportional to 27,938.51, 41,898.84 and 9,215.04

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Solution

The fourth proportional to 27,938.51, 41,898.84 and 9,215.04 is: 13,819.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,938.51 : 41,898.84 = 9,215.04 : x
  2. Step 2: Convert to fraction form
    27,938.51/41,898.84 = 9,215.04/x
  3. Step 3: Cross multiply
    27,938.51x = 41,898.84 × 9,215.04
  4. Step 4: Simplify right side
    27,938.51x = 386,099,486.55
  5. Step 5: Solve for x
    x = 386,099,486.55/27,938.51
  6. Step 6: Final answer
    x = 13,819.62

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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.