Home / 20,112.74-27,768.57-12,464.13

Finding the Fourth Proportional to 20,112.74, 27,768.57 and 12,464.13

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Solution

The fourth proportional to 20,112.74, 27,768.57 and 12,464.13 is: 17,208.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,112.74 : 27,768.57 = 12,464.13 : x
  2. Step 2: Convert to fraction form
    20,112.74/27,768.57 = 12,464.13/x
  3. Step 3: Cross multiply
    20,112.74x = 27,768.57 × 12,464.13
  4. Step 4: Simplify right side
    20,112.74x = 346,111,066.39
  5. Step 5: Solve for x
    x = 346,111,066.39/20,112.74
  6. Step 6: Final answer
    x = 17,208.55

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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.