Home / 20,000.36-29,956.80-12,185.48

Finding the Fourth Proportional to 20,000.36, 29,956.80 and 12,185.48

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Solution

The fourth proportional to 20,000.36, 29,956.80 and 12,185.48 is: 18,251.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,000.36 : 29,956.80 = 12,185.48 : x
  2. Step 2: Convert to fraction form
    20,000.36/29,956.80 = 12,185.48/x
  3. Step 3: Cross multiply
    20,000.36x = 29,956.80 × 12,185.48
  4. Step 4: Simplify right side
    20,000.36x = 365,037,987.26
  5. Step 5: Solve for x
    x = 365,037,987.26/20,000.36
  6. Step 6: Final answer
    x = 18,251.57

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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.