Home / 28,722.45-43,083.69-9,002.55

Finding the Fourth Proportional to 28,722.45, 43,083.69 and 9,002.55

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Solution

The fourth proportional to 28,722.45, 43,083.69 and 9,002.55 is: 13,503.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,722.45 : 43,083.69 = 9,002.55 : x
  2. Step 2: Convert to fraction form
    28,722.45/43,083.69 = 9,002.55/x
  3. Step 3: Cross multiply
    28,722.45x = 43,083.69 × 9,002.55
  4. Step 4: Simplify right side
    28,722.45x = 387,863,073.41
  5. Step 5: Solve for x
    x = 387,863,073.41/28,722.45
  6. Step 6: Final answer
    x = 13,503.83

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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.