Home / 22,068.44-30,455.66-12,640.04

Finding the Fourth Proportional to 22,068.44, 30,455.66 and 12,640.04

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Solution

The fourth proportional to 22,068.44, 30,455.66 and 12,640.04 is: 17,443.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,068.44 : 30,455.66 = 12,640.04 : x
  2. Step 2: Convert to fraction form
    22,068.44/30,455.66 = 12,640.04/x
  3. Step 3: Cross multiply
    22,068.44x = 30,455.66 × 12,640.04
  4. Step 4: Simplify right side
    22,068.44x = 384,960,760.63
  5. Step 5: Solve for x
    x = 384,960,760.63/22,068.44
  6. Step 6: Final answer
    x = 17,443.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.