Home / 28,643.88-39,537.72-16,709.54

Finding the Fourth Proportional to 28,643.88, 39,537.72 and 16,709.54

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Solution

The fourth proportional to 28,643.88, 39,537.72 and 16,709.54 is: 23,064.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,643.88 : 39,537.72 = 16,709.54 : x
  2. Step 2: Convert to fraction form
    28,643.88/39,537.72 = 16,709.54/x
  3. Step 3: Cross multiply
    28,643.88x = 39,537.72 × 16,709.54
  4. Step 4: Simplify right side
    28,643.88x = 660,657,138.56
  5. Step 5: Solve for x
    x = 660,657,138.56/28,643.88
  6. Step 6: Final answer
    x = 23,064.51

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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.