Home / 28,416.12-39,214.44-16,486.56

Finding the Fourth Proportional to 28,416.12, 39,214.44 and 16,486.56

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Solution

The fourth proportional to 28,416.12, 39,214.44 and 16,486.56 is: 22,751.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,416.12 : 39,214.44 = 16,486.56 : x
  2. Step 2: Convert to fraction form
    28,416.12/39,214.44 = 16,486.56/x
  3. Step 3: Cross multiply
    28,416.12x = 39,214.44 × 16,486.56
  4. Step 4: Simplify right side
    28,416.12x = 646,511,217.93
  5. Step 5: Solve for x
    x = 646,511,217.93/28,416.12
  6. Step 6: Final answer
    x = 22,751.57

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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.