Home / 28,790.94-39,731.41-16,851.90

Finding the Fourth Proportional to 28,790.94, 39,731.41 and 16,851.90

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Solution

The fourth proportional to 28,790.94, 39,731.41 and 16,851.90 is: 23,255.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,790.94 : 39,731.41 = 16,851.90 : x
  2. Step 2: Convert to fraction form
    28,790.94/39,731.41 = 16,851.90/x
  3. Step 3: Cross multiply
    28,790.94x = 39,731.41 × 16,851.90
  4. Step 4: Simplify right side
    28,790.94x = 669,549,694.75
  5. Step 5: Solve for x
    x = 669,549,694.75/28,790.94
  6. Step 6: Final answer
    x = 23,255.57

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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.