Home / 28,179.44-38,887.63-15,604.19

Finding the Fourth Proportional to 28,179.44, 38,887.63 and 15,604.19

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Solution

The fourth proportional to 28,179.44, 38,887.63 and 15,604.19 is: 21,533.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,179.44 : 38,887.63 = 15,604.19 : x
  2. Step 2: Convert to fraction form
    28,179.44/38,887.63 = 15,604.19/x
  3. Step 3: Cross multiply
    28,179.44x = 38,887.63 × 15,604.19
  4. Step 4: Simplify right side
    28,179.44x = 606,809,889.15
  5. Step 5: Solve for x
    x = 606,809,889.15/28,179.44
  6. Step 6: Final answer
    x = 21,533.78

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.