Home / 19,845.45-27,387.01-10,892.79

Finding the Fourth Proportional to 19,845.45, 27,387.01 and 10,892.79

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Solution

The fourth proportional to 19,845.45, 27,387.01 and 10,892.79 is: 15,032.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,845.45 : 27,387.01 = 10,892.79 : x
  2. Step 2: Convert to fraction form
    19,845.45/27,387.01 = 10,892.79/x
  3. Step 3: Cross multiply
    19,845.45x = 27,387.01 × 10,892.79
  4. Step 4: Simplify right side
    19,845.45x = 298,320,894.19
  5. Step 5: Solve for x
    x = 298,320,894.19/19,845.45
  6. Step 6: Final answer
    x = 15,032.21

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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.