Home / 21,855.37-30,160.36-12,295.26

Finding the Fourth Proportional to 21,855.37, 30,160.36 and 12,295.26

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Solution

The fourth proportional to 21,855.37, 30,160.36 and 12,295.26 is: 16,967.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,855.37 : 30,160.36 = 12,295.26 : x
  2. Step 2: Convert to fraction form
    21,855.37/30,160.36 = 12,295.26/x
  3. Step 3: Cross multiply
    21,855.37x = 30,160.36 × 12,295.26
  4. Step 4: Simplify right side
    21,855.37x = 370,829,255.62
  5. Step 5: Solve for x
    x = 370,829,255.62/21,855.37
  6. Step 6: Final answer
    x = 16,967.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.