Home / 21,656.22-29,884.74-13,594.21

Finding the Fourth Proportional to 21,656.22, 29,884.74 and 13,594.21

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Solution

The fourth proportional to 21,656.22, 29,884.74 and 13,594.21 is: 18,759.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,656.22 : 29,884.74 = 13,594.21 : x
  2. Step 2: Convert to fraction form
    21,656.22/29,884.74 = 13,594.21/x
  3. Step 3: Cross multiply
    21,656.22x = 29,884.74 × 13,594.21
  4. Step 4: Simplify right side
    21,656.22x = 406,259,431.36
  5. Step 5: Solve for x
    x = 406,259,431.36/21,656.22
  6. Step 6: Final answer
    x = 18,759.48

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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.