Home / 27,078.88-37,378.26-18,609.05

Finding the Fourth Proportional to 27,078.88, 37,378.26 and 18,609.05

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Solution

The fourth proportional to 27,078.88, 37,378.26 and 18,609.05 is: 25,686.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,078.88 : 37,378.26 = 18,609.05 : x
  2. Step 2: Convert to fraction form
    27,078.88/37,378.26 = 18,609.05/x
  3. Step 3: Cross multiply
    27,078.88x = 37,378.26 × 18,609.05
  4. Step 4: Simplify right side
    27,078.88x = 695,573,909.25
  5. Step 5: Solve for x
    x = 695,573,909.25/27,078.88
  6. Step 6: Final answer
    x = 25,686.95

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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.