Home / 28,883.78-43,316.84-12,243.50

Finding the Fourth Proportional to 28,883.78, 43,316.84 and 12,243.50

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Solution

The fourth proportional to 28,883.78, 43,316.84 and 12,243.50 is: 18,361.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,883.78 : 43,316.84 = 12,243.50 : x
  2. Step 2: Convert to fraction form
    28,883.78/43,316.84 = 12,243.50/x
  3. Step 3: Cross multiply
    28,883.78x = 43,316.84 × 12,243.50
  4. Step 4: Simplify right side
    28,883.78x = 530,349,730.54
  5. Step 5: Solve for x
    x = 530,349,730.54/28,883.78
  6. Step 6: Final answer
    x = 18,361.51

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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.