Home / 39,767.67-54,877.98-21,862.54

Finding the Fourth Proportional to 39,767.67, 54,877.98 and 21,862.54

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Solution

The fourth proportional to 39,767.67, 54,877.98 and 21,862.54 is: 30,169.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,767.67 : 54,877.98 = 21,862.54 : x
  2. Step 2: Convert to fraction form
    39,767.67/54,877.98 = 21,862.54/x
  3. Step 3: Cross multiply
    39,767.67x = 54,877.98 × 21,862.54
  4. Step 4: Simplify right side
    39,767.67x = 1,199,772,121.96
  5. Step 5: Solve for x
    x = 1,199,772,121.96/39,767.67
  6. Step 6: Final answer
    x = 30,169.54

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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.