Home / 39,846.61-54,986.14-21,938.22

Finding the Fourth Proportional to 39,846.61, 54,986.14 and 21,938.22

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Solution

The fourth proportional to 39,846.61, 54,986.14 and 21,938.22 is: 30,273.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,846.61 : 54,986.14 = 21,938.22 : x
  2. Step 2: Convert to fraction form
    39,846.61/54,986.14 = 21,938.22/x
  3. Step 3: Cross multiply
    39,846.61x = 54,986.14 × 21,938.22
  4. Step 4: Simplify right side
    39,846.61x = 1,206,298,036.27
  5. Step 5: Solve for x
    x = 1,206,298,036.27/39,846.61
  6. Step 6: Final answer
    x = 30,273.54

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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.