Home / 28,532.94-42,809.56-12,736.54

Finding the Fourth Proportional to 28,532.94, 42,809.56 and 12,736.54

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Solution

The fourth proportional to 28,532.94, 42,809.56 and 12,736.54 is: 19,109.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,532.94 : 42,809.56 = 12,736.54 : x
  2. Step 2: Convert to fraction form
    28,532.94/42,809.56 = 12,736.54/x
  3. Step 3: Cross multiply
    28,532.94x = 42,809.56 × 12,736.54
  4. Step 4: Simplify right side
    28,532.94x = 545,245,673.32
  5. Step 5: Solve for x
    x = 545,245,673.32/28,532.94
  6. Step 6: Final answer
    x = 19,109.34

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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.