Home / 18,027.78-27,042.71-4,881.21

Finding the Fourth Proportional to 18,027.78, 27,042.71 and 4,881.21

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Solution

The fourth proportional to 18,027.78, 27,042.71 and 4,881.21 is: 7,322.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,027.78 : 27,042.71 = 4,881.21 : x
  2. Step 2: Convert to fraction form
    18,027.78/27,042.71 = 4,881.21/x
  3. Step 3: Cross multiply
    18,027.78x = 27,042.71 × 4,881.21
  4. Step 4: Simplify right side
    18,027.78x = 132,001,122.07
  5. Step 5: Solve for x
    x = 132,001,122.07/18,027.78
  6. Step 6: Final answer
    x = 7,322.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.