Home / 18,688.52-28,039.77-8,829.41

Finding the Fourth Proportional to 18,688.52, 28,039.77 and 8,829.41

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Solution

The fourth proportional to 18,688.52, 28,039.77 and 8,829.41 is: 13,247.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.52 : 28,039.77 = 8,829.41 : x
  2. Step 2: Convert to fraction form
    18,688.52/28,039.77 = 8,829.41/x
  3. Step 3: Cross multiply
    18,688.52x = 28,039.77 × 8,829.41
  4. Step 4: Simplify right side
    18,688.52x = 247,574,485.44
  5. Step 5: Solve for x
    x = 247,574,485.44/18,688.52
  6. Step 6: Final answer
    x = 13,247.41

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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.