Home / 28,925.22-39,912.57-16,992.42

Finding the Fourth Proportional to 28,925.22, 39,912.57 and 16,992.42

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Solution

The fourth proportional to 28,925.22, 39,912.57 and 16,992.42 is: 23,447.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,925.22 : 39,912.57 = 16,992.42 : x
  2. Step 2: Convert to fraction form
    28,925.22/39,912.57 = 16,992.42/x
  3. Step 3: Cross multiply
    28,925.22x = 39,912.57 × 16,992.42
  4. Step 4: Simplify right side
    28,925.22x = 678,211,152.72
  5. Step 5: Solve for x
    x = 678,211,152.72/28,925.22
  6. Step 6: Final answer
    x = 23,447.05

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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.