Home / 19,370.29-29,052.09-5,138.87

Finding the Fourth Proportional to 19,370.29, 29,052.09 and 5,138.87

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Solution

The fourth proportional to 19,370.29, 29,052.09 and 5,138.87 is: 7,707.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,370.29 : 29,052.09 = 5,138.87 : x
  2. Step 2: Convert to fraction form
    19,370.29/29,052.09 = 5,138.87/x
  3. Step 3: Cross multiply
    19,370.29x = 29,052.09 × 5,138.87
  4. Step 4: Simplify right side
    19,370.29x = 149,294,913.74
  5. Step 5: Solve for x
    x = 149,294,913.74/19,370.29
  6. Step 6: Final answer
    x = 7,707.42

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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.