Home / 28,768.07-39,690.42-16,822.95

Finding the Fourth Proportional to 28,768.07, 39,690.42 and 16,822.95

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Solution

The fourth proportional to 28,768.07, 39,690.42 and 16,822.95 is: 23,210.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,768.07 : 39,690.42 = 16,822.95 : x
  2. Step 2: Convert to fraction form
    28,768.07/39,690.42 = 16,822.95/x
  3. Step 3: Cross multiply
    28,768.07x = 39,690.42 × 16,822.95
  4. Step 4: Simplify right side
    28,768.07x = 667,709,951.14
  5. Step 5: Solve for x
    x = 667,709,951.14/28,768.07
  6. Step 6: Final answer
    x = 23,210.11

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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.