Home / 28,938.04-43,409.58-8,161.72

Finding the Fourth Proportional to 28,938.04, 43,409.58 and 8,161.72

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Solution

The fourth proportional to 28,938.04, 43,409.58 and 8,161.72 is: 12,243.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,938.04 : 43,409.58 = 8,161.72 : x
  2. Step 2: Convert to fraction form
    28,938.04/43,409.58 = 8,161.72/x
  3. Step 3: Cross multiply
    28,938.04x = 43,409.58 × 8,161.72
  4. Step 4: Simplify right side
    28,938.04x = 354,296,837.28
  5. Step 5: Solve for x
    x = 354,296,837.28/28,938.04
  6. Step 6: Final answer
    x = 12,243.29

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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.