Home / 30,112.72-44,954.25-28,111.61

Finding the Fourth Proportional to 30,112.72, 44,954.25 and 28,111.61

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Solution

The fourth proportional to 30,112.72, 44,954.25 and 28,111.61 is: 41,966.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,112.72 : 44,954.25 = 28,111.61 : x
  2. Step 2: Convert to fraction form
    30,112.72/44,954.25 = 28,111.61/x
  3. Step 3: Cross multiply
    30,112.72x = 44,954.25 × 28,111.61
  4. Step 4: Simplify right side
    30,112.72x = 1,263,736,343.84
  5. Step 5: Solve for x
    x = 1,263,736,343.84/30,112.72
  6. Step 6: Final answer
    x = 41,966.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.