Home / 21,523.74-32,336.34-12,661.80

Finding the Fourth Proportional to 21,523.74, 32,336.34 and 12,661.80

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Solution

The fourth proportional to 21,523.74, 32,336.34 and 12,661.80 is: 19,022.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,523.74 : 32,336.34 = 12,661.80 : x
  2. Step 2: Convert to fraction form
    21,523.74/32,336.34 = 12,661.80/x
  3. Step 3: Cross multiply
    21,523.74x = 32,336.34 × 12,661.80
  4. Step 4: Simplify right side
    21,523.74x = 409,436,269.81
  5. Step 5: Solve for x
    x = 409,436,269.81/21,523.74
  6. Step 6: Final answer
    x = 19,022.54

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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.