Home / 20,075.88-27,705.72-11,124.36

Finding the Fourth Proportional to 20,075.88, 27,705.72 and 11,124.36

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Solution

The fourth proportional to 20,075.88, 27,705.72 and 11,124.36 is: 15,352.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,075.88 : 27,705.72 = 11,124.36 : x
  2. Step 2: Convert to fraction form
    20,075.88/27,705.72 = 11,124.36/x
  3. Step 3: Cross multiply
    20,075.88x = 27,705.72 × 11,124.36
  4. Step 4: Simplify right side
    20,075.88x = 308,208,403.34
  5. Step 5: Solve for x
    x = 308,208,403.34/20,075.88
  6. Step 6: Final answer
    x = 15,352.17

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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.