Home / 27,561.33-38,015.37-18,616.50

Finding the Fourth Proportional to 27,561.33, 38,015.37 and 18,616.50

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Solution

The fourth proportional to 27,561.33, 38,015.37 and 18,616.50 is: 25,677.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,561.33 : 38,015.37 = 18,616.50 : x
  2. Step 2: Convert to fraction form
    27,561.33/38,015.37 = 18,616.50/x
  3. Step 3: Cross multiply
    27,561.33x = 38,015.37 × 18,616.50
  4. Step 4: Simplify right side
    27,561.33x = 707,713,135.61
  5. Step 5: Solve for x
    x = 707,713,135.61/27,561.33
  6. Step 6: Final answer
    x = 25,677.76

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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.