Home / 19,955.48-27,538.75-11,003.30

Finding the Fourth Proportional to 19,955.48, 27,538.75 and 11,003.30

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Solution

The fourth proportional to 19,955.48, 27,538.75 and 11,003.30 is: 15,184.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,955.48 : 27,538.75 = 11,003.30 : x
  2. Step 2: Convert to fraction form
    19,955.48/27,538.75 = 11,003.30/x
  3. Step 3: Cross multiply
    19,955.48x = 27,538.75 × 11,003.30
  4. Step 4: Simplify right side
    19,955.48x = 303,016,962.67
  5. Step 5: Solve for x
    x = 303,016,962.67/19,955.48
  6. Step 6: Final answer
    x = 15,184.65

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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.