Home / 28,055.53-38,720.23-16,121.19

Finding the Fourth Proportional to 28,055.53, 38,720.23 and 16,121.19

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Solution

The fourth proportional to 28,055.53, 38,720.23 and 16,121.19 is: 22,249.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,055.53 : 38,720.23 = 16,121.19 : x
  2. Step 2: Convert to fraction form
    28,055.53/38,720.23 = 16,121.19/x
  3. Step 3: Cross multiply
    28,055.53x = 38,720.23 × 16,121.19
  4. Step 4: Simplify right side
    28,055.53x = 624,216,289.57
  5. Step 5: Solve for x
    x = 624,216,289.57/28,055.53
  6. Step 6: Final answer
    x = 22,249.31

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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.