Home / 21,827.45-32,741.36-11,961.35

Finding the Fourth Proportional to 21,827.45, 32,741.36 and 11,961.35

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Solution

The fourth proportional to 21,827.45, 32,741.36 and 11,961.35 is: 17,942.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,827.45 : 32,741.36 = 11,961.35 : x
  2. Step 2: Convert to fraction form
    21,827.45/32,741.36 = 11,961.35/x
  3. Step 3: Cross multiply
    21,827.45x = 32,741.36 × 11,961.35
  4. Step 4: Simplify right side
    21,827.45x = 391,630,810.56
  5. Step 5: Solve for x
    x = 391,630,810.56/21,827.45
  6. Step 6: Final answer
    x = 17,942.12

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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.