Home / 28,469.76-39,287.86-16,539.80

Finding the Fourth Proportional to 28,469.76, 39,287.86 and 16,539.80

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Solution

The fourth proportional to 28,469.76, 39,287.86 and 16,539.80 is: 22,824.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,469.76 : 39,287.86 = 16,539.80 : x
  2. Step 2: Convert to fraction form
    28,469.76/39,287.86 = 16,539.80/x
  3. Step 3: Cross multiply
    28,469.76x = 39,287.86 × 16,539.80
  4. Step 4: Simplify right side
    28,469.76x = 649,813,346.83
  5. Step 5: Solve for x
    x = 649,813,346.83/28,469.76
  6. Step 6: Final answer
    x = 22,824.69

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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.