Home / 39,112.08-53,974.92-21,207.36

Finding the Fourth Proportional to 39,112.08, 53,974.92 and 21,207.36

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Solution

The fourth proportional to 39,112.08, 53,974.92 and 21,207.36 is: 29,266.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,112.08 : 53,974.92 = 21,207.36 : x
  2. Step 2: Convert to fraction form
    39,112.08/53,974.92 = 21,207.36/x
  3. Step 3: Cross multiply
    39,112.08x = 53,974.92 × 21,207.36
  4. Step 4: Simplify right side
    39,112.08x = 1,144,665,559.41
  5. Step 5: Solve for x
    x = 1,144,665,559.41/39,112.08
  6. Step 6: Final answer
    x = 29,266.29

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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.