Home / 21,751.15-30,016.07-12,799.23

Finding the Fourth Proportional to 21,751.15, 30,016.07 and 12,799.23

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Solution

The fourth proportional to 21,751.15, 30,016.07 and 12,799.23 is: 17,662.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,751.15 : 30,016.07 = 12,799.23 : x
  2. Step 2: Convert to fraction form
    21,751.15/30,016.07 = 12,799.23/x
  3. Step 3: Cross multiply
    21,751.15x = 30,016.07 × 12,799.23
  4. Step 4: Simplify right side
    21,751.15x = 384,182,615.62
  5. Step 5: Solve for x
    x = 384,182,615.62/21,751.15
  6. Step 6: Final answer
    x = 17,662.64

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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.