Home / 21,966.16-30,317.88-20,194.96

Finding the Fourth Proportional to 21,966.16, 30,317.88 and 20,194.96

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Solution

The fourth proportional to 21,966.16, 30,317.88 and 20,194.96 is: 27,873.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,966.16 : 30,317.88 = 20,194.96 : x
  2. Step 2: Convert to fraction form
    21,966.16/30,317.88 = 20,194.96/x
  3. Step 3: Cross multiply
    21,966.16x = 30,317.88 × 20,194.96
  4. Step 4: Simplify right side
    21,966.16x = 612,268,373.88
  5. Step 5: Solve for x
    x = 612,268,373.88/21,966.16
  6. Step 6: Final answer
    x = 27,873.25

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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.