Home / 27,103.15-40,644.61-9,328.78

Finding the Fourth Proportional to 27,103.15, 40,644.61 and 9,328.78

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Solution

The fourth proportional to 27,103.15, 40,644.61 and 9,328.78 is: 13,989.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,103.15 : 40,644.61 = 9,328.78 : x
  2. Step 2: Convert to fraction form
    27,103.15/40,644.61 = 9,328.78/x
  3. Step 3: Cross multiply
    27,103.15x = 40,644.61 × 9,328.78
  4. Step 4: Simplify right side
    27,103.15x = 379,164,499.94
  5. Step 5: Solve for x
    x = 379,164,499.94/27,103.15
  6. Step 6: Final answer
    x = 13,989.69

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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.