Home / 39,767.40-54,878.25-21,862.23

Finding the Fourth Proportional to 39,767.40, 54,878.25 and 21,862.23

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Solution

The fourth proportional to 39,767.40, 54,878.25 and 21,862.23 is: 30,169.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,767.40 : 54,878.25 = 21,862.23 : x
  2. Step 2: Convert to fraction form
    39,767.40/54,878.25 = 21,862.23/x
  3. Step 3: Cross multiply
    39,767.40x = 54,878.25 × 21,862.23
  4. Step 4: Simplify right side
    39,767.40x = 1,199,760,923.50
  5. Step 5: Solve for x
    x = 1,199,760,923.50/39,767.40
  6. Step 6: Final answer
    x = 30,169.46

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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.