Home / 27,979.70-41,937.15-11,328.80

Finding the Fourth Proportional to 27,979.70, 41,937.15 and 11,328.80

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Solution

The fourth proportional to 27,979.70, 41,937.15 and 11,328.80 is: 16,980.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,979.70 : 41,937.15 = 11,328.80 : x
  2. Step 2: Convert to fraction form
    27,979.70/41,937.15 = 11,328.80/x
  3. Step 3: Cross multiply
    27,979.70x = 41,937.15 × 11,328.80
  4. Step 4: Simplify right side
    27,979.70x = 475,097,584.92
  5. Step 5: Solve for x
    x = 475,097,584.92/27,979.70
  6. Step 6: Final answer
    x = 16,980.08

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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.