Home / 19,955.40-27,538.11-11,003.76

Finding the Fourth Proportional to 19,955.40, 27,538.11 and 11,003.76

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Solution

The fourth proportional to 19,955.40, 27,538.11 and 11,003.76 is: 15,185.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,955.40 : 27,538.11 = 11,003.76 : x
  2. Step 2: Convert to fraction form
    19,955.40/27,538.11 = 11,003.76/x
  3. Step 3: Cross multiply
    19,955.40x = 27,538.11 × 11,003.76
  4. Step 4: Simplify right side
    19,955.40x = 303,022,753.29
  5. Step 5: Solve for x
    x = 303,022,753.29/19,955.40
  6. Step 6: Final answer
    x = 15,185.00

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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.