Home / 19,970.75-29,956.13-6,119.75

Finding the Fourth Proportional to 19,970.75, 29,956.13 and 6,119.75

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Solution

The fourth proportional to 19,970.75, 29,956.13 and 6,119.75 is: 9,179.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,970.75 : 29,956.13 = 6,119.75 : x
  2. Step 2: Convert to fraction form
    19,970.75/29,956.13 = 6,119.75/x
  3. Step 3: Cross multiply
    19,970.75x = 29,956.13 × 6,119.75
  4. Step 4: Simplify right side
    19,970.75x = 183,324,026.57
  5. Step 5: Solve for x
    x = 183,324,026.57/19,970.75
  6. Step 6: Final answer
    x = 9,179.63

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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.