Home / 27,182.51-40,720.65-18,729.08

Finding the Fourth Proportional to 27,182.51, 40,720.65 and 18,729.08

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Solution

The fourth proportional to 27,182.51, 40,720.65 and 18,729.08 is: 28,057.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,182.51 : 40,720.65 = 18,729.08 : x
  2. Step 2: Convert to fraction form
    27,182.51/40,720.65 = 18,729.08/x
  3. Step 3: Cross multiply
    27,182.51x = 40,720.65 × 18,729.08
  4. Step 4: Simplify right side
    27,182.51x = 762,660,107.90
  5. Step 5: Solve for x
    x = 762,660,107.90/27,182.51
  6. Step 6: Final answer
    x = 28,057.02

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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.