Home / 19,896.32-27,453.12-13,606.40

Finding the Fourth Proportional to 19,896.32, 27,453.12 and 13,606.40

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Solution

The fourth proportional to 19,896.32, 27,453.12 and 13,606.40 is: 18,774.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,896.32 : 27,453.12 = 13,606.40 : x
  2. Step 2: Convert to fraction form
    19,896.32/27,453.12 = 13,606.40/x
  3. Step 3: Cross multiply
    19,896.32x = 27,453.12 × 13,606.40
  4. Step 4: Simplify right side
    19,896.32x = 373,538,131.97
  5. Step 5: Solve for x
    x = 373,538,131.97/19,896.32
  6. Step 6: Final answer
    x = 18,774.23

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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.