Home / 21,103.10-29,101.38-13,548.26

Finding the Fourth Proportional to 21,103.10, 29,101.38 and 13,548.26

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Solution

The fourth proportional to 21,103.10, 29,101.38 and 13,548.26 is: 18,683.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,103.10 : 29,101.38 = 13,548.26 : x
  2. Step 2: Convert to fraction form
    21,103.10/29,101.38 = 13,548.26/x
  3. Step 3: Cross multiply
    21,103.10x = 29,101.38 × 13,548.26
  4. Step 4: Simplify right side
    21,103.10x = 394,273,062.60
  5. Step 5: Solve for x
    x = 394,273,062.60/21,103.10
  6. Step 6: Final answer
    x = 18,683.18

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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.