Home / 21,635.76-29,858.04-12,204.48

Finding the Fourth Proportional to 21,635.76, 29,858.04 and 12,204.48

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Solution

The fourth proportional to 21,635.76, 29,858.04 and 12,204.48 is: 16,842.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,635.76 : 29,858.04 = 12,204.48 : x
  2. Step 2: Convert to fraction form
    21,635.76/29,858.04 = 12,204.48/x
  3. Step 3: Cross multiply
    21,635.76x = 29,858.04 × 12,204.48
  4. Step 4: Simplify right side
    21,635.76x = 364,401,852.02
  5. Step 5: Solve for x
    x = 364,401,852.02/21,635.76
  6. Step 6: Final answer
    x = 16,842.57

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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.