Home / 38,735.63-53,455.17-21,968.63

Finding the Fourth Proportional to 38,735.63, 53,455.17 and 21,968.63

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Solution

The fourth proportional to 38,735.63, 53,455.17 and 21,968.63 is: 30,316.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,735.63 : 53,455.17 = 21,968.63 : x
  2. Step 2: Convert to fraction form
    38,735.63/53,455.17 = 21,968.63/x
  3. Step 3: Cross multiply
    38,735.63x = 53,455.17 × 21,968.63
  4. Step 4: Simplify right side
    38,735.63x = 1,174,336,584.04
  5. Step 5: Solve for x
    x = 1,174,336,584.04/38,735.63
  6. Step 6: Final answer
    x = 30,316.71

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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.