Home / 30,640.44-42,287.76-17,211.69

Finding the Fourth Proportional to 30,640.44, 42,287.76 and 17,211.69

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Solution

The fourth proportional to 30,640.44, 42,287.76 and 17,211.69 is: 23,754.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,640.44 : 42,287.76 = 17,211.69 : x
  2. Step 2: Convert to fraction form
    30,640.44/42,287.76 = 17,211.69/x
  3. Step 3: Cross multiply
    30,640.44x = 42,287.76 × 17,211.69
  4. Step 4: Simplify right side
    30,640.44x = 727,843,815.91
  5. Step 5: Solve for x
    x = 727,843,815.91/30,640.44
  6. Step 6: Final answer
    x = 23,754.35

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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.