Home / 28,133.28-38,817.36-16,192.80

Finding the Fourth Proportional to 28,133.28, 38,817.36 and 16,192.80

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Solution

The fourth proportional to 28,133.28, 38,817.36 and 16,192.80 is: 22,342.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,133.28 : 38,817.36 = 16,192.80 : x
  2. Step 2: Convert to fraction form
    28,133.28/38,817.36 = 16,192.80/x
  3. Step 3: Cross multiply
    28,133.28x = 38,817.36 × 16,192.80
  4. Step 4: Simplify right side
    28,133.28x = 628,561,747.01
  5. Step 5: Solve for x
    x = 628,561,747.01/28,133.28
  6. Step 6: Final answer
    x = 22,342.28

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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.