Home / 27,891.20-38,479.26-18,336.24

Finding the Fourth Proportional to 27,891.20, 38,479.26 and 18,336.24

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Solution

The fourth proportional to 27,891.20, 38,479.26 and 18,336.24 is: 25,297.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,891.20 : 38,479.26 = 18,336.24 : x
  2. Step 2: Convert to fraction form
    27,891.20/38,479.26 = 18,336.24/x
  3. Step 3: Cross multiply
    27,891.20x = 38,479.26 × 18,336.24
  4. Step 4: Simplify right side
    27,891.20x = 705,564,946.38
  5. Step 5: Solve for x
    x = 705,564,946.38/27,891.20
  6. Step 6: Final answer
    x = 25,297.05

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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.