Home / 19,678.17-29,517.66-7,983.39

Finding the Fourth Proportional to 19,678.17, 29,517.66 and 7,983.39

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Solution

The fourth proportional to 19,678.17, 29,517.66 and 7,983.39 is: 11,975.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,678.17 : 29,517.66 = 7,983.39 : x
  2. Step 2: Convert to fraction form
    19,678.17/29,517.66 = 7,983.39/x
  3. Step 3: Cross multiply
    19,678.17x = 29,517.66 × 7,983.39
  4. Step 4: Simplify right side
    19,678.17x = 235,650,991.67
  5. Step 5: Solve for x
    x = 235,650,991.67/19,678.17
  6. Step 6: Final answer
    x = 11,975.25

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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.