Home / 21,935.11-30,270.75-12,374.97

Finding the Fourth Proportional to 21,935.11, 30,270.75 and 12,374.97

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Solution

The fourth proportional to 21,935.11, 30,270.75 and 12,374.97 is: 17,077.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,935.11 : 30,270.75 = 12,374.97 : x
  2. Step 2: Convert to fraction form
    21,935.11/30,270.75 = 12,374.97/x
  3. Step 3: Cross multiply
    21,935.11x = 30,270.75 × 12,374.97
  4. Step 4: Simplify right side
    21,935.11x = 374,599,537.37
  5. Step 5: Solve for x
    x = 374,599,537.37/21,935.11
  6. Step 6: Final answer
    x = 17,077.62

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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.