Home / 19,620.87-27,072.06-12,448.17

Finding the Fourth Proportional to 19,620.87, 27,072.06 and 12,448.17

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Solution

The fourth proportional to 19,620.87, 27,072.06 and 12,448.17 is: 17,175.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,620.87 : 27,072.06 = 12,448.17 : x
  2. Step 2: Convert to fraction form
    19,620.87/27,072.06 = 12,448.17/x
  3. Step 3: Cross multiply
    19,620.87x = 27,072.06 × 12,448.17
  4. Step 4: Simplify right side
    19,620.87x = 336,997,605.13
  5. Step 5: Solve for x
    x = 336,997,605.13/19,620.87
  6. Step 6: Final answer
    x = 17,175.47

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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.