Home / 19,881.63-27,435.33-11,383.83

Finding the Fourth Proportional to 19,881.63, 27,435.33 and 11,383.83

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Solution

The fourth proportional to 19,881.63, 27,435.33 and 11,383.83 is: 15,708.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,881.63 : 27,435.33 = 11,383.83 : x
  2. Step 2: Convert to fraction form
    19,881.63/27,435.33 = 11,383.83/x
  3. Step 3: Cross multiply
    19,881.63x = 27,435.33 × 11,383.83
  4. Step 4: Simplify right side
    19,881.63x = 312,319,132.71
  5. Step 5: Solve for x
    x = 312,319,132.71/19,881.63
  6. Step 6: Final answer
    x = 15,708.93

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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.