Home / 20,075.52-27,703.31-11,000.85

Finding the Fourth Proportional to 20,075.52, 27,703.31 and 11,000.85

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Solution

The fourth proportional to 20,075.52, 27,703.31 and 11,000.85 is: 15,180.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,075.52 : 27,703.31 = 11,000.85 : x
  2. Step 2: Convert to fraction form
    20,075.52/27,703.31 = 11,000.85/x
  3. Step 3: Cross multiply
    20,075.52x = 27,703.31 × 11,000.85
  4. Step 4: Simplify right side
    20,075.52x = 304,759,902.81
  5. Step 5: Solve for x
    x = 304,759,902.81/20,075.52
  6. Step 6: Final answer
    x = 15,180.67

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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.