Home / 19,840.75-29,761.57-7,995.71

Finding the Fourth Proportional to 19,840.75, 29,761.57 and 7,995.71

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Solution

The fourth proportional to 19,840.75, 29,761.57 and 7,995.71 is: 11,993.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,840.75 : 29,761.57 = 7,995.71 : x
  2. Step 2: Convert to fraction form
    19,840.75/29,761.57 = 7,995.71/x
  3. Step 3: Cross multiply
    19,840.75x = 29,761.57 × 7,995.71
  4. Step 4: Simplify right side
    19,840.75x = 237,964,882.86
  5. Step 5: Solve for x
    x = 237,964,882.86/19,840.75
  6. Step 6: Final answer
    x = 11,993.74

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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.