Home / 27,309.18-40,979.70-11,513.25

Finding the Fourth Proportional to 27,309.18, 40,979.70 and 11,513.25

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Solution

The fourth proportional to 27,309.18, 40,979.70 and 11,513.25 is: 17,276.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,309.18 : 40,979.70 = 11,513.25 : x
  2. Step 2: Convert to fraction form
    27,309.18/40,979.70 = 11,513.25/x
  3. Step 3: Cross multiply
    27,309.18x = 40,979.70 × 11,513.25
  4. Step 4: Simplify right side
    27,309.18x = 471,809,531.03
  5. Step 5: Solve for x
    x = 471,809,531.03/27,309.18
  6. Step 6: Final answer
    x = 17,276.59

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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.