Home / 19,328.24-28,954.80-11,910.80

Finding the Fourth Proportional to 19,328.24, 28,954.80 and 11,910.80

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Solution

The fourth proportional to 19,328.24, 28,954.80 and 11,910.80 is: 17,843.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,328.24 : 28,954.80 = 11,910.80 : x
  2. Step 2: Convert to fraction form
    19,328.24/28,954.80 = 11,910.80/x
  3. Step 3: Cross multiply
    19,328.24x = 28,954.80 × 11,910.80
  4. Step 4: Simplify right side
    19,328.24x = 344,874,831.84
  5. Step 5: Solve for x
    x = 344,874,831.84/19,328.24
  6. Step 6: Final answer
    x = 17,843.05

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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.