Home / 21,182.09-31,723.04-18,393.62

Finding the Fourth Proportional to 21,182.09, 31,723.04 and 18,393.62

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Solution

The fourth proportional to 21,182.09, 31,723.04 and 18,393.62 is: 27,546.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,182.09 : 31,723.04 = 18,393.62 : x
  2. Step 2: Convert to fraction form
    21,182.09/31,723.04 = 18,393.62/x
  3. Step 3: Cross multiply
    21,182.09x = 31,723.04 × 18,393.62
  4. Step 4: Simplify right side
    21,182.09x = 583,501,338.41
  5. Step 5: Solve for x
    x = 583,501,338.41/21,182.09
  6. Step 6: Final answer
    x = 27,546.92

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1.5x scale

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.