Home / 39,763.80-54,875.04-21,859.26

Finding the Fourth Proportional to 39,763.80, 54,875.04 and 21,859.26

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Solution

The fourth proportional to 39,763.80, 54,875.04 and 21,859.26 is: 30,166.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,763.80 : 54,875.04 = 21,859.26 : x
  2. Step 2: Convert to fraction form
    39,763.80/54,875.04 = 21,859.26/x
  3. Step 3: Cross multiply
    39,763.80x = 54,875.04 × 21,859.26
  4. Step 4: Simplify right side
    39,763.80x = 1,199,527,766.87
  5. Step 5: Solve for x
    x = 1,199,527,766.87/39,763.80
  6. Step 6: Final answer
    x = 30,166.33

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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.