Home / 39,767.63-54,877.22-21,859.19

Finding the Fourth Proportional to 39,767.63, 54,877.22 and 21,859.19

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Solution

The fourth proportional to 39,767.63, 54,877.22 and 21,859.19 is: 30,164.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,767.63 : 54,877.22 = 21,859.19 : x
  2. Step 2: Convert to fraction form
    39,767.63/54,877.22 = 21,859.19/x
  3. Step 3: Cross multiply
    39,767.63x = 54,877.22 × 21,859.19
  4. Step 4: Simplify right side
    39,767.63x = 1,199,571,578.65
  5. Step 5: Solve for x
    x = 1,199,571,578.65/39,767.63
  6. Step 6: Final answer
    x = 30,164.52

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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.