Home / 39,767.23-54,878.84-21,862.54

Finding the Fourth Proportional to 39,767.23, 54,878.84 and 21,862.54

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Solution

The fourth proportional to 39,767.23, 54,878.84 and 21,862.54 is: 30,170.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,767.23 : 54,878.84 = 21,862.54 : x
  2. Step 2: Convert to fraction form
    39,767.23/54,878.84 = 21,862.54/x
  3. Step 3: Cross multiply
    39,767.23x = 54,878.84 × 21,862.54
  4. Step 4: Simplify right side
    39,767.23x = 1,199,790,834.65
  5. Step 5: Solve for x
    x = 1,199,790,834.65/39,767.23
  6. Step 6: Final answer
    x = 30,170.34

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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.