Home / 39,202.80-54,100.20-21,297.84

Finding the Fourth Proportional to 39,202.80, 54,100.20 and 21,297.84

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Solution

The fourth proportional to 39,202.80, 54,100.20 and 21,297.84 is: 29,391.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,202.80 : 54,100.20 = 21,297.84 : x
  2. Step 2: Convert to fraction form
    39,202.80/54,100.20 = 21,297.84/x
  3. Step 3: Cross multiply
    39,202.80x = 54,100.20 × 21,297.84
  4. Step 4: Simplify right side
    39,202.80x = 1,152,217,403.57
  5. Step 5: Solve for x
    x = 1,152,217,403.57/39,202.80
  6. Step 6: Final answer
    x = 29,391.20

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1.5x scale

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.