Home / 39,801.26-54,924.93-21,895.80

Finding the Fourth Proportional to 39,801.26, 54,924.93 and 21,895.80

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Solution

The fourth proportional to 39,801.26, 54,924.93 and 21,895.80 is: 30,215.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,801.26 : 54,924.93 = 21,895.80 : x
  2. Step 2: Convert to fraction form
    39,801.26/54,924.93 = 21,895.80/x
  3. Step 3: Cross multiply
    39,801.26x = 54,924.93 × 21,895.80
  4. Step 4: Simplify right side
    39,801.26x = 1,202,625,282.29
  5. Step 5: Solve for x
    x = 1,202,625,282.29/39,801.26
  6. Step 6: Final answer
    x = 30,215.76

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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.