Home / 28,791.45-39,733.74-16,855.70

Finding the Fourth Proportional to 28,791.45, 39,733.74 and 16,855.70

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Solution

The fourth proportional to 28,791.45, 39,733.74 and 16,855.70 is: 23,261.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,791.45 : 39,733.74 = 16,855.70 : x
  2. Step 2: Convert to fraction form
    28,791.45/39,733.74 = 16,855.70/x
  3. Step 3: Cross multiply
    28,791.45x = 39,733.74 × 16,855.70
  4. Step 4: Simplify right side
    28,791.45x = 669,739,802.65
  5. Step 5: Solve for x
    x = 669,739,802.65/28,791.45
  6. Step 6: Final answer
    x = 23,261.76

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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.