Home / 39,351.51-54,305.13-21,446.54

Finding the Fourth Proportional to 39,351.51, 54,305.13 and 21,446.54

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Solution

The fourth proportional to 39,351.51, 54,305.13 and 21,446.54 is: 29,596.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,351.51 : 54,305.13 = 21,446.54 : x
  2. Step 2: Convert to fraction form
    39,351.51/54,305.13 = 21,446.54/x
  3. Step 3: Cross multiply
    39,351.51x = 54,305.13 × 21,446.54
  4. Step 4: Simplify right side
    39,351.51x = 1,164,656,871.22
  5. Step 5: Solve for x
    x = 1,164,656,871.22/39,351.51
  6. Step 6: Final answer
    x = 29,596.24

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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.