Home / 19,871.33-27,424.81-11,917.93

Finding the Fourth Proportional to 19,871.33, 27,424.81 and 11,917.93

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Solution

The fourth proportional to 19,871.33, 27,424.81 and 11,917.93 is: 16,448.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,871.33 : 27,424.81 = 11,917.93 : x
  2. Step 2: Convert to fraction form
    19,871.33/27,424.81 = 11,917.93/x
  3. Step 3: Cross multiply
    19,871.33x = 27,424.81 × 11,917.93
  4. Step 4: Simplify right side
    19,871.33x = 326,846,965.84
  5. Step 5: Solve for x
    x = 326,846,965.84/19,871.33
  6. Step 6: Final answer
    x = 16,448.17

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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.