Home / 28,584.20-42,880.46-8,864.35

Finding the Fourth Proportional to 28,584.20, 42,880.46 and 8,864.35

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Solution

The fourth proportional to 28,584.20, 42,880.46 and 8,864.35 is: 13,297.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,584.20 : 42,880.46 = 8,864.35 : x
  2. Step 2: Convert to fraction form
    28,584.20/42,880.46 = 8,864.35/x
  3. Step 3: Cross multiply
    28,584.20x = 42,880.46 × 8,864.35
  4. Step 4: Simplify right side
    28,584.20x = 380,107,254.08
  5. Step 5: Solve for x
    x = 380,107,254.08/28,584.20
  6. Step 6: Final answer
    x = 13,297.81

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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.