Home / 19,955.78-27,538.45-11,003.13

Finding the Fourth Proportional to 19,955.78, 27,538.45 and 11,003.13

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Solution

The fourth proportional to 19,955.78, 27,538.45 and 11,003.13 is: 15,184.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,955.78 : 27,538.45 = 11,003.13 : x
  2. Step 2: Convert to fraction form
    19,955.78/27,538.45 = 11,003.13/x
  3. Step 3: Cross multiply
    19,955.78x = 27,538.45 × 11,003.13
  4. Step 4: Simplify right side
    19,955.78x = 303,009,117.84
  5. Step 5: Solve for x
    x = 303,009,117.84/19,955.78
  6. Step 6: Final answer
    x = 15,184.03

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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.