Home / 18,479.88-27,618.53-13,492.75

Finding the Fourth Proportional to 18,479.88, 27,618.53 and 13,492.75

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Solution

The fourth proportional to 18,479.88, 27,618.53 and 13,492.75 is: 20,165.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,479.88 : 27,618.53 = 13,492.75 : x
  2. Step 2: Convert to fraction form
    18,479.88/27,618.53 = 13,492.75/x
  3. Step 3: Cross multiply
    18,479.88x = 27,618.53 × 13,492.75
  4. Step 4: Simplify right side
    18,479.88x = 372,649,920.66
  5. Step 5: Solve for x
    x = 372,649,920.66/18,479.88
  6. Step 6: Final answer
    x = 20,165.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.