Home / 38,075.12-52,540.92-21,078.80

Finding the Fourth Proportional to 38,075.12, 52,540.92 and 21,078.80

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Solution

The fourth proportional to 38,075.12, 52,540.92 and 21,078.80 is: 29,087.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,075.12 : 52,540.92 = 21,078.80 : x
  2. Step 2: Convert to fraction form
    38,075.12/52,540.92 = 21,078.80/x
  3. Step 3: Cross multiply
    38,075.12x = 52,540.92 × 21,078.80
  4. Step 4: Simplify right side
    38,075.12x = 1,107,499,544.50
  5. Step 5: Solve for x
    x = 1,107,499,544.50/38,075.12
  6. Step 6: Final answer
    x = 29,087.22

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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.