Home / 21,558.60-32,295.87-12,170.23

Finding the Fourth Proportional to 21,558.60, 32,295.87 and 12,170.23

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Solution

The fourth proportional to 21,558.60, 32,295.87 and 12,170.23 is: 18,231.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,558.60 : 32,295.87 = 12,170.23 : x
  2. Step 2: Convert to fraction form
    21,558.60/32,295.87 = 12,170.23/x
  3. Step 3: Cross multiply
    21,558.60x = 32,295.87 × 12,170.23
  4. Step 4: Simplify right side
    21,558.60x = 393,048,085.21
  5. Step 5: Solve for x
    x = 393,048,085.21/21,558.60
  6. Step 6: Final answer
    x = 18,231.61

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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.