Home / 39,763.98-54,874.33-21,859.29

Finding the Fourth Proportional to 39,763.98, 54,874.33 and 21,859.29

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Solution

The fourth proportional to 39,763.98, 54,874.33 and 21,859.29 is: 30,165.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,763.98 : 54,874.33 = 21,859.29 : x
  2. Step 2: Convert to fraction form
    39,763.98/54,874.33 = 21,859.29/x
  3. Step 3: Cross multiply
    39,763.98x = 54,874.33 × 21,859.29
  4. Step 4: Simplify right side
    39,763.98x = 1,199,513,838.38
  5. Step 5: Solve for x
    x = 1,199,513,838.38/39,763.98
  6. Step 6: Final answer
    x = 30,165.84

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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.