Home / 28,860.75-39,829.05-16,285.50

Finding the Fourth Proportional to 28,860.75, 39,829.05 and 16,285.50

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Solution

The fourth proportional to 28,860.75, 39,829.05 and 16,285.50 is: 22,474.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,860.75 : 39,829.05 = 16,285.50 : x
  2. Step 2: Convert to fraction form
    28,860.75/39,829.05 = 16,285.50/x
  3. Step 3: Cross multiply
    28,860.75x = 39,829.05 × 16,285.50
  4. Step 4: Simplify right side
    28,860.75x = 648,635,993.78
  5. Step 5: Solve for x
    x = 648,635,993.78/28,860.75
  6. Step 6: Final answer
    x = 22,474.68

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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.