Home / 27,285.78-40,944.36-11,489.57

Finding the Fourth Proportional to 27,285.78, 40,944.36 and 11,489.57

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Solution

The fourth proportional to 27,285.78, 40,944.36 and 11,489.57 is: 17,240.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,285.78 : 40,944.36 = 11,489.57 : x
  2. Step 2: Convert to fraction form
    27,285.78/40,944.36 = 11,489.57/x
  3. Step 3: Cross multiply
    27,285.78x = 40,944.36 × 11,489.57
  4. Step 4: Simplify right side
    27,285.78x = 470,432,885.60
  5. Step 5: Solve for x
    x = 470,432,885.60/27,285.78
  6. Step 6: Final answer
    x = 17,240.95

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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.