Home / 28,075.73-38,742.84-15,326.37

Finding the Fourth Proportional to 28,075.73, 38,742.84 and 15,326.37

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Solution

The fourth proportional to 28,075.73, 38,742.84 and 15,326.37 is: 21,149.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,075.73 : 38,742.84 = 15,326.37 : x
  2. Step 2: Convert to fraction form
    28,075.73/38,742.84 = 15,326.37/x
  3. Step 3: Cross multiply
    28,075.73x = 38,742.84 × 15,326.37
  4. Step 4: Simplify right side
    28,075.73x = 593,787,100.69
  5. Step 5: Solve for x
    x = 593,787,100.69/28,075.73
  6. Step 6: Final answer
    x = 21,149.48

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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.