Home / 21,609.25-32,391.67-8,279.12

Finding the Fourth Proportional to 21,609.25, 32,391.67 and 8,279.12

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Solution

The fourth proportional to 21,609.25, 32,391.67 and 8,279.12 is: 12,410.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,609.25 : 32,391.67 = 8,279.12 : x
  2. Step 2: Convert to fraction form
    21,609.25/32,391.67 = 8,279.12/x
  3. Step 3: Cross multiply
    21,609.25x = 32,391.67 × 8,279.12
  4. Step 4: Simplify right side
    21,609.25x = 268,174,522.93
  5. Step 5: Solve for x
    x = 268,174,522.93/21,609.25
  6. Step 6: Final answer
    x = 12,410.17

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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.