Home / 28,775.24-39,709.82-16,840.86

Finding the Fourth Proportional to 28,775.24, 39,709.82 and 16,840.86

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Solution

The fourth proportional to 28,775.24, 39,709.82 and 16,840.86 is: 23,240.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,775.24 : 39,709.82 = 16,840.86 : x
  2. Step 2: Convert to fraction form
    28,775.24/39,709.82 = 16,840.86/x
  3. Step 3: Cross multiply
    28,775.24x = 39,709.82 × 16,840.86
  4. Step 4: Simplify right side
    28,775.24x = 668,747,519.25
  5. Step 5: Solve for x
    x = 668,747,519.25/28,775.24
  6. Step 6: Final answer
    x = 23,240.38

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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.