Home / 28,922.80-43,362.60-12,269.20

Finding the Fourth Proportional to 28,922.80, 43,362.60 and 12,269.20

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Solution

The fourth proportional to 28,922.80, 43,362.60 and 12,269.20 is: 18,394.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,922.80 : 43,362.60 = 12,269.20 : x
  2. Step 2: Convert to fraction form
    28,922.80/43,362.60 = 12,269.20/x
  3. Step 3: Cross multiply
    28,922.80x = 43,362.60 × 12,269.20
  4. Step 4: Simplify right side
    28,922.80x = 532,024,411.92
  5. Step 5: Solve for x
    x = 532,024,411.92/28,922.80
  6. Step 6: Final answer
    x = 18,394.64

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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.