Home / 19,955.29-27,538.49-11,003.15

Finding the Fourth Proportional to 19,955.29, 27,538.49 and 11,003.15

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Solution

The fourth proportional to 19,955.29, 27,538.49 and 11,003.15 is: 15,184.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,955.29 : 27,538.49 = 11,003.15 : x
  2. Step 2: Convert to fraction form
    19,955.29/27,538.49 = 11,003.15/x
  3. Step 3: Cross multiply
    19,955.29x = 27,538.49 × 11,003.15
  4. Step 4: Simplify right side
    19,955.29x = 303,009,943.54
  5. Step 5: Solve for x
    x = 303,009,943.54/19,955.29
  6. Step 6: Final answer
    x = 15,184.45

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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.