Home / 21,062.11-31,577.56-9,955.82

Finding the Fourth Proportional to 21,062.11, 31,577.56 and 9,955.82

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Solution

The fourth proportional to 21,062.11, 31,577.56 and 9,955.82 is: 14,926.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062.11 : 31,577.56 = 9,955.82 : x
  2. Step 2: Convert to fraction form
    21,062.11/31,577.56 = 9,955.82/x
  3. Step 3: Cross multiply
    21,062.11x = 31,577.56 × 9,955.82
  4. Step 4: Simplify right side
    21,062.11x = 314,380,557.45
  5. Step 5: Solve for x
    x = 314,380,557.45/21,062.11
  6. Step 6: Final answer
    x = 14,926.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.