Home / 28,816.50-43,214.34-12,177.81

Finding the Fourth Proportional to 28,816.50, 43,214.34 and 12,177.81

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Solution

The fourth proportional to 28,816.50, 43,214.34 and 12,177.81 is: 18,262.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,816.50 : 43,214.34 = 12,177.81 : x
  2. Step 2: Convert to fraction form
    28,816.50/43,214.34 = 12,177.81/x
  3. Step 3: Cross multiply
    28,816.50x = 43,214.34 × 12,177.81
  4. Step 4: Simplify right side
    28,816.50x = 526,256,021.80
  5. Step 5: Solve for x
    x = 526,256,021.80/28,816.50
  6. Step 6: Final answer
    x = 18,262.32

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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.