Home / 20,075.04-27,703.62-11,691.54

Finding the Fourth Proportional to 20,075.04, 27,703.62 and 11,691.54

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Solution

The fourth proportional to 20,075.04, 27,703.62 and 11,691.54 is: 16,134.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,075.04 : 27,703.62 = 11,691.54 : x
  2. Step 2: Convert to fraction form
    20,075.04/27,703.62 = 11,691.54/x
  3. Step 3: Cross multiply
    20,075.04x = 27,703.62 × 11,691.54
  4. Step 4: Simplify right side
    20,075.04x = 323,897,981.37
  5. Step 5: Solve for x
    x = 323,897,981.37/20,075.04
  6. Step 6: Final answer
    x = 16,134.36

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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.