Home / 20,097.10-27,733.72-11,144.40

Finding the Fourth Proportional to 20,097.10, 27,733.72 and 11,144.40

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Solution

The fourth proportional to 20,097.10, 27,733.72 and 11,144.40 is: 15,379.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,097.10 : 27,733.72 = 11,144.40 : x
  2. Step 2: Convert to fraction form
    20,097.10/27,733.72 = 11,144.40/x
  3. Step 3: Cross multiply
    20,097.10x = 27,733.72 × 11,144.40
  4. Step 4: Simplify right side
    20,097.10x = 309,075,669.17
  5. Step 5: Solve for x
    x = 309,075,669.17/20,097.10
  6. Step 6: Final answer
    x = 15,379.12

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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.