Home / 27,784.78-41,639.90-17,918.98

Finding the Fourth Proportional to 27,784.78, 41,639.90 and 17,918.98

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Solution

The fourth proportional to 27,784.78, 41,639.90 and 17,918.98 is: 26,854.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,784.78 : 41,639.90 = 17,918.98 : x
  2. Step 2: Convert to fraction form
    27,784.78/41,639.90 = 17,918.98/x
  3. Step 3: Cross multiply
    27,784.78x = 41,639.90 × 17,918.98
  4. Step 4: Simplify right side
    27,784.78x = 746,144,445.71
  5. Step 5: Solve for x
    x = 746,144,445.71/27,784.78
  6. Step 6: Final answer
    x = 26,854.43

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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.