Home / 28,926.96-39,921.22-16,181.30

Finding the Fourth Proportional to 28,926.96, 39,921.22 and 16,181.30

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Solution

The fourth proportional to 28,926.96, 39,921.22 and 16,181.30 is: 22,331.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,926.96 : 39,921.22 = 16,181.30 : x
  2. Step 2: Convert to fraction form
    28,926.96/39,921.22 = 16,181.30/x
  3. Step 3: Cross multiply
    28,926.96x = 39,921.22 × 16,181.30
  4. Step 4: Simplify right side
    28,926.96x = 645,977,357.22
  5. Step 5: Solve for x
    x = 645,977,357.22/28,926.96
  6. Step 6: Final answer
    x = 22,331.33

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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.