Home / 38,658.37-53,348.52-21,662.75

Finding the Fourth Proportional to 38,658.37, 53,348.52 and 21,662.75

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Solution

The fourth proportional to 38,658.37, 53,348.52 and 21,662.75 is: 29,894.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,658.37 : 53,348.52 = 21,662.75 : x
  2. Step 2: Convert to fraction form
    38,658.37/53,348.52 = 21,662.75/x
  3. Step 3: Cross multiply
    38,658.37x = 53,348.52 × 21,662.75
  4. Step 4: Simplify right side
    38,658.37x = 1,155,675,651.63
  5. Step 5: Solve for x
    x = 1,155,675,651.63/38,658.37
  6. Step 6: Final answer
    x = 29,894.58

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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.