Home / 19,884.24-27,440.32-11,386.49

Finding the Fourth Proportional to 19,884.24, 27,440.32 and 11,386.49

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Solution

The fourth proportional to 19,884.24, 27,440.32 and 11,386.49 is: 15,713.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,884.24 : 27,440.32 = 11,386.49 : x
  2. Step 2: Convert to fraction form
    19,884.24/27,440.32 = 11,386.49/x
  3. Step 3: Cross multiply
    19,884.24x = 27,440.32 × 11,386.49
  4. Step 4: Simplify right side
    19,884.24x = 312,448,969.41
  5. Step 5: Solve for x
    x = 312,448,969.41/19,884.24
  6. Step 6: Final answer
    x = 15,713.40

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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.