Home / 21,890.26-32,845.64-10,790.90

Finding the Fourth Proportional to 21,890.26, 32,845.64 and 10,790.90

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Solution

The fourth proportional to 21,890.26, 32,845.64 and 10,790.90 is: 16,191.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,890.26 : 32,845.64 = 10,790.90 : x
  2. Step 2: Convert to fraction form
    21,890.26/32,845.64 = 10,790.90/x
  3. Step 3: Cross multiply
    21,890.26x = 32,845.64 × 10,790.90
  4. Step 4: Simplify right side
    21,890.26x = 354,434,016.68
  5. Step 5: Solve for x
    x = 354,434,016.68/21,890.26
  6. Step 6: Final answer
    x = 16,191.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.