Home / 39,544.86-54,571.98-21,640

Finding the Fourth Proportional to 39,544.86, 54,571.98 and 21,640

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Solution

The fourth proportional to 39,544.86, 54,571.98 and 21,640 is: 29,863.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,544.86 : 54,571.98 = 21,640 : x
  2. Step 2: Convert to fraction form
    39,544.86/54,571.98 = 21,640/x
  3. Step 3: Cross multiply
    39,544.86x = 54,571.98 × 21,640
  4. Step 4: Simplify right side
    39,544.86x = 1,180,937,647.20
  5. Step 5: Solve for x
    x = 1,180,937,647.20/39,544.86
  6. Step 6: Final answer
    x = 29,863.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.