Home / 19,643.30-27,106.32-11,147.22

Finding the Fourth Proportional to 19,643.30, 27,106.32 and 11,147.22

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Solution

The fourth proportional to 19,643.30, 27,106.32 and 11,147.22 is: 15,382.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,643.30 : 27,106.32 = 11,147.22 : x
  2. Step 2: Convert to fraction form
    19,643.30/27,106.32 = 11,147.22/x
  3. Step 3: Cross multiply
    19,643.30x = 27,106.32 × 11,147.22
  4. Step 4: Simplify right side
    19,643.30x = 302,160,112.43
  5. Step 5: Solve for x
    x = 302,160,112.43/19,643.30
  6. Step 6: Final answer
    x = 15,382.35

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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.