Home / 21,627.60-29,835.36-13,968.24

Finding the Fourth Proportional to 21,627.60, 29,835.36 and 13,968.24

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Solution

The fourth proportional to 21,627.60, 29,835.36 and 13,968.24 is: 19,269.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,627.60 : 29,835.36 = 13,968.24 : x
  2. Step 2: Convert to fraction form
    21,627.60/29,835.36 = 13,968.24/x
  3. Step 3: Cross multiply
    21,627.60x = 29,835.36 × 13,968.24
  4. Step 4: Simplify right side
    21,627.60x = 416,747,468.97
  5. Step 5: Solve for x
    x = 416,747,468.97/21,627.60
  6. Step 6: Final answer
    x = 19,269.24

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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.