Home / 38,704.93-53,408.54-21,705.68

Finding the Fourth Proportional to 38,704.93, 53,408.54 and 21,705.68

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Solution

The fourth proportional to 38,704.93, 53,408.54 and 21,705.68 is: 29,951.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,704.93 : 53,408.54 = 21,705.68 : x
  2. Step 2: Convert to fraction form
    38,704.93/53,408.54 = 21,705.68/x
  3. Step 3: Cross multiply
    38,704.93x = 53,408.54 × 21,705.68
  4. Step 4: Simplify right side
    38,704.93x = 1,159,268,302.94
  5. Step 5: Solve for x
    x = 1,159,268,302.94/38,704.93
  6. Step 6: Final answer
    x = 29,951.44

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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.