Home / 22,721.16-34,083.36-7,138.44

Finding the Fourth Proportional to 22,721.16, 34,083.36 and 7,138.44

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Solution

The fourth proportional to 22,721.16, 34,083.36 and 7,138.44 is: 10,708.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,721.16 : 34,083.36 = 7,138.44 : x
  2. Step 2: Convert to fraction form
    22,721.16/34,083.36 = 7,138.44/x
  3. Step 3: Cross multiply
    22,721.16x = 34,083.36 × 7,138.44
  4. Step 4: Simplify right side
    22,721.16x = 243,302,020.36
  5. Step 5: Solve for x
    x = 243,302,020.36/22,721.16
  6. Step 6: Final answer
    x = 10,708.17

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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.