Home / 21,149.03-29,185.64-12,196.41

Finding the Fourth Proportional to 21,149.03, 29,185.64 and 12,196.41

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Solution

The fourth proportional to 21,149.03, 29,185.64 and 12,196.41 is: 16,831.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,149.03 : 29,185.64 = 12,196.41 : x
  2. Step 2: Convert to fraction form
    21,149.03/29,185.64 = 12,196.41/x
  3. Step 3: Cross multiply
    21,149.03x = 29,185.64 × 12,196.41
  4. Step 4: Simplify right side
    21,149.03x = 355,960,031.55
  5. Step 5: Solve for x
    x = 355,960,031.55/21,149.03
  6. Step 6: Final answer
    x = 16,831.03

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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.