Home / 39,351.76-54,305.47-21,446.78

Finding the Fourth Proportional to 39,351.76, 54,305.47 and 21,446.78

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Solution

The fourth proportional to 39,351.76, 54,305.47 and 21,446.78 is: 29,596.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,351.76 : 54,305.47 = 21,446.78 : x
  2. Step 2: Convert to fraction form
    39,351.76/54,305.47 = 21,446.78/x
  3. Step 3: Cross multiply
    39,351.76x = 54,305.47 × 21,446.78
  4. Step 4: Simplify right side
    39,351.76x = 1,164,677,467.89
  5. Step 5: Solve for x
    x = 1,164,677,467.89/39,351.76
  6. Step 6: Final answer
    x = 29,596.58

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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.