Home / 21,810.22-30,067.87-14,725.42

Finding the Fourth Proportional to 21,810.22, 30,067.87 and 14,725.42

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Solution

The fourth proportional to 21,810.22, 30,067.87 and 14,725.42 is: 20,300.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,810.22 : 30,067.87 = 14,725.42 : x
  2. Step 2: Convert to fraction form
    21,810.22/30,067.87 = 14,725.42/x
  3. Step 3: Cross multiply
    21,810.22x = 30,067.87 × 14,725.42
  4. Step 4: Simplify right side
    21,810.22x = 442,762,014.26
  5. Step 5: Solve for x
    x = 442,762,014.26/21,810.22
  6. Step 6: Final answer
    x = 20,300.67

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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.