Home / 19,119.78-28,682.10-5,972.94

Finding the Fourth Proportional to 19,119.78, 28,682.10 and 5,972.94

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Solution

The fourth proportional to 19,119.78, 28,682.10 and 5,972.94 is: 8,960.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,119.78 : 28,682.10 = 5,972.94 : x
  2. Step 2: Convert to fraction form
    19,119.78/28,682.10 = 5,972.94/x
  3. Step 3: Cross multiply
    19,119.78x = 28,682.10 × 5,972.94
  4. Step 4: Simplify right side
    19,119.78x = 171,316,462.37
  5. Step 5: Solve for x
    x = 171,316,462.37/19,119.78
  6. Step 6: Final answer
    x = 8,960.17

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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.