Home / 19,830.38-27,365.93-11,446.88

Finding the Fourth Proportional to 19,830.38, 27,365.93 and 11,446.88

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Solution

The fourth proportional to 19,830.38, 27,365.93 and 11,446.88 is: 15,796.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,830.38 : 27,365.93 = 11,446.88 : x
  2. Step 2: Convert to fraction form
    19,830.38/27,365.93 = 11,446.88/x
  3. Step 3: Cross multiply
    19,830.38x = 27,365.93 × 11,446.88
  4. Step 4: Simplify right side
    19,830.38x = 313,254,322.73
  5. Step 5: Solve for x
    x = 313,254,322.73/19,830.38
  6. Step 6: Final answer
    x = 15,796.69

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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.