Home / 20,952.31-28,905.94-11,994.98

Finding the Fourth Proportional to 20,952.31, 28,905.94 and 11,994.98

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Solution

The fourth proportional to 20,952.31, 28,905.94 and 11,994.98 is: 16,548.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,952.31 : 28,905.94 = 11,994.98 : x
  2. Step 2: Convert to fraction form
    20,952.31/28,905.94 = 11,994.98/x
  3. Step 3: Cross multiply
    20,952.31x = 28,905.94 × 11,994.98
  4. Step 4: Simplify right side
    20,952.31x = 346,726,112.21
  5. Step 5: Solve for x
    x = 346,726,112.21/20,952.31
  6. Step 6: Final answer
    x = 16,548.35

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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.