Home / 28,120.14-38,808.45-16,190.46

Finding the Fourth Proportional to 28,120.14, 38,808.45 and 16,190.46

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Solution

The fourth proportional to 28,120.14, 38,808.45 and 16,190.46 is: 22,344.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,120.14 : 38,808.45 = 16,190.46 : x
  2. Step 2: Convert to fraction form
    28,120.14/38,808.45 = 16,190.46/x
  3. Step 3: Cross multiply
    28,120.14x = 38,808.45 × 16,190.46
  4. Step 4: Simplify right side
    28,120.14x = 628,326,657.39
  5. Step 5: Solve for x
    x = 628,326,657.39/28,120.14
  6. Step 6: Final answer
    x = 22,344.36

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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.