Home / 28,828.79-43,211.59-11,279.33

Finding the Fourth Proportional to 28,828.79, 43,211.59 and 11,279.33

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Solution

The fourth proportional to 28,828.79, 43,211.59 and 11,279.33 is: 16,906.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,828.79 : 43,211.59 = 11,279.33 : x
  2. Step 2: Convert to fraction form
    28,828.79/43,211.59 = 11,279.33/x
  3. Step 3: Cross multiply
    28,828.79x = 43,211.59 × 11,279.33
  4. Step 4: Simplify right side
    28,828.79x = 487,397,539.18
  5. Step 5: Solve for x
    x = 487,397,539.18/28,828.79
  6. Step 6: Final answer
    x = 16,906.63

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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.