Home / 27,678.62-41,485.41-12,856.29

Finding the Fourth Proportional to 27,678.62, 41,485.41 and 12,856.29

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Solution

The fourth proportional to 27,678.62, 41,485.41 and 12,856.29 is: 19,269.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,678.62 : 41,485.41 = 12,856.29 : x
  2. Step 2: Convert to fraction form
    27,678.62/41,485.41 = 12,856.29/x
  3. Step 3: Cross multiply
    27,678.62x = 41,485.41 × 12,856.29
  4. Step 4: Simplify right side
    27,678.62x = 533,348,461.73
  5. Step 5: Solve for x
    x = 533,348,461.73/27,678.62
  6. Step 6: Final answer
    x = 19,269.33

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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.