Home / 21,790.92-32,687.46-13,081.80

Finding the Fourth Proportional to 21,790.92, 32,687.46 and 13,081.80

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Solution

The fourth proportional to 21,790.92, 32,687.46 and 13,081.80 is: 19,623.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,790.92 : 32,687.46 = 13,081.80 : x
  2. Step 2: Convert to fraction form
    21,790.92/32,687.46 = 13,081.80/x
  3. Step 3: Cross multiply
    21,790.92x = 32,687.46 × 13,081.80
  4. Step 4: Simplify right side
    21,790.92x = 427,610,814.23
  5. Step 5: Solve for x
    x = 427,610,814.23/21,790.92
  6. Step 6: Final answer
    x = 19,623.35

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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.