Home / 20,125.14-27,767.01-12,579.12

Finding the Fourth Proportional to 20,125.14, 27,767.01 and 12,579.12

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Solution

The fourth proportional to 20,125.14, 27,767.01 and 12,579.12 is: 17,355.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,125.14 : 27,767.01 = 12,579.12 : x
  2. Step 2: Convert to fraction form
    20,125.14/27,767.01 = 12,579.12/x
  3. Step 3: Cross multiply
    20,125.14x = 27,767.01 × 12,579.12
  4. Step 4: Simplify right side
    20,125.14x = 349,284,598.00
  5. Step 5: Solve for x
    x = 349,284,598.00/20,125.14
  6. Step 6: Final answer
    x = 17,355.64

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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.