Home / 19,955.81-27,539.19-11,003.64

Finding the Fourth Proportional to 19,955.81, 27,539.19 and 11,003.64

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Solution

The fourth proportional to 19,955.81, 27,539.19 and 11,003.64 is: 15,185.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,955.81 : 27,539.19 = 11,003.64 : x
  2. Step 2: Convert to fraction form
    19,955.81/27,539.19 = 11,003.64/x
  3. Step 3: Cross multiply
    19,955.81x = 27,539.19 × 11,003.64
  4. Step 4: Simplify right side
    19,955.81x = 303,031,332.65
  5. Step 5: Solve for x
    x = 303,031,332.65/19,955.81
  6. Step 6: Final answer
    x = 15,185.12

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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.