Home / 28,911.22-43,368.94-12,269.36

Finding the Fourth Proportional to 28,911.22, 43,368.94 and 12,269.36

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Solution

The fourth proportional to 28,911.22, 43,368.94 and 12,269.36 is: 18,404.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,911.22 : 43,368.94 = 12,269.36 : x
  2. Step 2: Convert to fraction form
    28,911.22/43,368.94 = 12,269.36/x
  3. Step 3: Cross multiply
    28,911.22x = 43,368.94 × 12,269.36
  4. Step 4: Simplify right side
    28,911.22x = 532,109,137.68
  5. Step 5: Solve for x
    x = 532,109,137.68/28,911.22
  6. Step 6: Final answer
    x = 18,404.94

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1.5x scale

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.