Home / 28,984.36-39,999.92-16,236.80

Finding the Fourth Proportional to 28,984.36, 39,999.92 and 16,236.80

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Solution

The fourth proportional to 28,984.36, 39,999.92 and 16,236.80 is: 22,407.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,984.36 : 39,999.92 = 16,236.80 : x
  2. Step 2: Convert to fraction form
    28,984.36/39,999.92 = 16,236.80/x
  3. Step 3: Cross multiply
    28,984.36x = 39,999.92 × 16,236.80
  4. Step 4: Simplify right side
    28,984.36x = 649,470,701.06
  5. Step 5: Solve for x
    x = 649,470,701.06/28,984.36
  6. Step 6: Final answer
    x = 22,407.63

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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.