Home / 20,075.67-27,704.48-11,123.10

Finding the Fourth Proportional to 20,075.67, 27,704.48 and 11,123.10

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Solution

The fourth proportional to 20,075.67, 27,704.48 and 11,123.10 is: 15,349.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,075.67 : 27,704.48 = 11,123.10 : x
  2. Step 2: Convert to fraction form
    20,075.67/27,704.48 = 11,123.10/x
  3. Step 3: Cross multiply
    20,075.67x = 27,704.48 × 11,123.10
  4. Step 4: Simplify right side
    20,075.67x = 308,159,645.87
  5. Step 5: Solve for x
    x = 308,159,645.87/20,075.67
  6. Step 6: Final answer
    x = 15,349.91

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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.