Home / 19,640.88-29,439.45-7,150.68

Finding the Fourth Proportional to 19,640.88, 29,439.45 and 7,150.68

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Solution

The fourth proportional to 19,640.88, 29,439.45 and 7,150.68 is: 10,718.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,640.88 : 29,439.45 = 7,150.68 : x
  2. Step 2: Convert to fraction form
    19,640.88/29,439.45 = 7,150.68/x
  3. Step 3: Cross multiply
    19,640.88x = 29,439.45 × 7,150.68
  4. Step 4: Simplify right side
    19,640.88x = 210,512,086.33
  5. Step 5: Solve for x
    x = 210,512,086.33/19,640.88
  6. Step 6: Final answer
    x = 10,718.06

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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.