Home / 28,075.19-38,743.18-16,138.22

Finding the Fourth Proportional to 28,075.19, 38,743.18 and 16,138.22

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Solution

The fourth proportional to 28,075.19, 38,743.18 and 16,138.22 is: 22,270.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,075.19 : 38,743.18 = 16,138.22 : x
  2. Step 2: Convert to fraction form
    28,075.19/38,743.18 = 16,138.22/x
  3. Step 3: Cross multiply
    28,075.19x = 38,743.18 × 16,138.22
  4. Step 4: Simplify right side
    28,075.19x = 625,245,768.62
  5. Step 5: Solve for x
    x = 625,245,768.62/28,075.19
  6. Step 6: Final answer
    x = 22,270.41

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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.