Home / 17,721.72-26,569.49-5,871.20

Finding the Fourth Proportional to 17,721.72, 26,569.49 and 5,871.20

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Solution

The fourth proportional to 17,721.72, 26,569.49 and 5,871.20 is: 8,802.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,721.72 : 26,569.49 = 5,871.20 : x
  2. Step 2: Convert to fraction form
    17,721.72/26,569.49 = 5,871.20/x
  3. Step 3: Cross multiply
    17,721.72x = 26,569.49 × 5,871.20
  4. Step 4: Simplify right side
    17,721.72x = 155,994,627.48
  5. Step 5: Solve for x
    x = 155,994,627.48/17,721.72
  6. Step 6: Final answer
    x = 8,802.45

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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.