Home / 28,181.60-38,885.56-16,245.44

Finding the Fourth Proportional to 28,181.60, 38,885.56 and 16,245.44

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Solution

The fourth proportional to 28,181.60, 38,885.56 and 16,245.44 is: 22,415.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,181.60 : 38,885.56 = 16,245.44 : x
  2. Step 2: Convert to fraction form
    28,181.60/38,885.56 = 16,245.44/x
  3. Step 3: Cross multiply
    28,181.60x = 38,885.56 × 16,245.44
  4. Step 4: Simplify right side
    28,181.60x = 631,713,031.85
  5. Step 5: Solve for x
    x = 631,713,031.85/28,181.60
  6. Step 6: Final answer
    x = 22,415.80

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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.