Home / 27,899.88-38,476.08-18,960.72

Finding the Fourth Proportional to 27,899.88, 38,476.08 and 18,960.72

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Solution

The fourth proportional to 27,899.88, 38,476.08 and 18,960.72 is: 26,148.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,899.88 : 38,476.08 = 18,960.72 : x
  2. Step 2: Convert to fraction form
    27,899.88/38,476.08 = 18,960.72/x
  3. Step 3: Cross multiply
    27,899.88x = 38,476.08 × 18,960.72
  4. Step 4: Simplify right side
    27,899.88x = 729,534,179.58
  5. Step 5: Solve for x
    x = 729,534,179.58/27,899.88
  6. Step 6: Final answer
    x = 26,148.29

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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.