Home / 21,469.03-29,627.56-12,969.97

Finding the Fourth Proportional to 21,469.03, 29,627.56 and 12,969.97

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Solution

The fourth proportional to 21,469.03, 29,627.56 and 12,969.97 is: 17,898.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,469.03 : 29,627.56 = 12,969.97 : x
  2. Step 2: Convert to fraction form
    21,469.03/29,627.56 = 12,969.97/x
  3. Step 3: Cross multiply
    21,469.03x = 29,627.56 × 12,969.97
  4. Step 4: Simplify right side
    21,469.03x = 384,268,506.52
  5. Step 5: Solve for x
    x = 384,268,506.52/21,469.03
  6. Step 6: Final answer
    x = 17,898.74

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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.