Home / 28,015.23-38,661.60-16,077.60

Finding the Fourth Proportional to 28,015.23, 38,661.60 and 16,077.60

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Solution

The fourth proportional to 28,015.23, 38,661.60 and 16,077.60 is: 22,187.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,015.23 : 38,661.60 = 16,077.60 : x
  2. Step 2: Convert to fraction form
    28,015.23/38,661.60 = 16,077.60/x
  3. Step 3: Cross multiply
    28,015.23x = 38,661.60 × 16,077.60
  4. Step 4: Simplify right side
    28,015.23x = 621,585,740.16
  5. Step 5: Solve for x
    x = 621,585,740.16/28,015.23
  6. Step 6: Final answer
    x = 22,187.42

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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.