Home / 19,990.36-27,577.56-11,602

Finding the Fourth Proportional to 19,990.36, 27,577.56 and 11,602

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Solution

The fourth proportional to 19,990.36, 27,577.56 and 11,602 is: 16,005.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,990.36 : 27,577.56 = 11,602 : x
  2. Step 2: Convert to fraction form
    19,990.36/27,577.56 = 11,602/x
  3. Step 3: Cross multiply
    19,990.36x = 27,577.56 × 11,602
  4. Step 4: Simplify right side
    19,990.36x = 319,954,851.12
  5. Step 5: Solve for x
    x = 319,954,851.12/19,990.36
  6. Step 6: Final answer
    x = 16,005.46

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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.