Home / 39,197.82-54,090.95-21,292.80

Finding the Fourth Proportional to 39,197.82, 54,090.95 and 21,292.80

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Solution

The fourth proportional to 39,197.82, 54,090.95 and 21,292.80 is: 29,382.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,197.82 : 54,090.95 = 21,292.80 : x
  2. Step 2: Convert to fraction form
    39,197.82/54,090.95 = 21,292.80/x
  3. Step 3: Cross multiply
    39,197.82x = 54,090.95 × 21,292.80
  4. Step 4: Simplify right side
    39,197.82x = 1,151,747,673.70
  5. Step 5: Solve for x
    x = 1,151,747,673.70/39,197.82
  6. Step 6: Final answer
    x = 29,382.95

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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.