Home / 19,827.81-27,347.09-11,859.84

Finding the Fourth Proportional to 19,827.81, 27,347.09 and 11,859.84

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Solution

The fourth proportional to 19,827.81, 27,347.09 and 11,859.84 is: 16,357.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,827.81 : 27,347.09 = 11,859.84 : x
  2. Step 2: Convert to fraction form
    19,827.81/27,347.09 = 11,859.84/x
  3. Step 3: Cross multiply
    19,827.81x = 27,347.09 × 11,859.84
  4. Step 4: Simplify right side
    19,827.81x = 324,332,052.57
  5. Step 5: Solve for x
    x = 324,332,052.57/19,827.81
  6. Step 6: Final answer
    x = 16,357.43

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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.