Home / 27,859.37-38,454.70-18,797.90

Finding the Fourth Proportional to 27,859.37, 38,454.70 and 18,797.90

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Solution

The fourth proportional to 27,859.37, 38,454.70 and 18,797.90 is: 25,947.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,859.37 : 38,454.70 = 18,797.90 : x
  2. Step 2: Convert to fraction form
    27,859.37/38,454.70 = 18,797.90/x
  3. Step 3: Cross multiply
    27,859.37x = 38,454.70 × 18,797.90
  4. Step 4: Simplify right side
    27,859.37x = 722,867,605.13
  5. Step 5: Solve for x
    x = 722,867,605.13/27,859.37
  6. Step 6: Final answer
    x = 25,947.02

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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.