Home / 28,620.90-39,496.82-16,045.65

Finding the Fourth Proportional to 28,620.90, 39,496.82 and 16,045.65

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Solution

The fourth proportional to 28,620.90, 39,496.82 and 16,045.65 is: 22,142.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,620.90 : 39,496.82 = 16,045.65 : x
  2. Step 2: Convert to fraction form
    28,620.90/39,496.82 = 16,045.65/x
  3. Step 3: Cross multiply
    28,620.90x = 39,496.82 × 16,045.65
  4. Step 4: Simplify right side
    28,620.90x = 633,752,069.60
  5. Step 5: Solve for x
    x = 633,752,069.60/28,620.90
  6. Step 6: Final answer
    x = 22,142.98

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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.