Home / 39,766.98-54,878.48-21,862.29

Finding the Fourth Proportional to 39,766.98, 54,878.48 and 21,862.29

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Solution

The fourth proportional to 39,766.98, 54,878.48 and 21,862.29 is: 30,169.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,766.98 : 54,878.48 = 21,862.29 : x
  2. Step 2: Convert to fraction form
    39,766.98/54,878.48 = 21,862.29/x
  3. Step 3: Cross multiply
    39,766.98x = 54,878.48 × 21,862.29
  4. Step 4: Simplify right side
    39,766.98x = 1,199,769,135.21
  5. Step 5: Solve for x
    x = 1,199,769,135.21/39,766.98
  6. Step 6: Final answer
    x = 30,169.98

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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.