Home / 20,075.83-27,703.91-11,578.31

Finding the Fourth Proportional to 20,075.83, 27,703.91 and 11,578.31

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Solution

The fourth proportional to 20,075.83, 27,703.91 and 11,578.31 is: 15,977.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,075.83 : 27,703.91 = 11,578.31 : x
  2. Step 2: Convert to fraction form
    20,075.83/27,703.91 = 11,578.31/x
  3. Step 3: Cross multiply
    20,075.83x = 27,703.91 × 11,578.31
  4. Step 4: Simplify right side
    20,075.83x = 320,764,365.67
  5. Step 5: Solve for x
    x = 320,764,365.67/20,075.83
  6. Step 6: Final answer
    x = 15,977.64

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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.