Home / 18,640.30-27,959.44-5,492.79

Finding the Fourth Proportional to 18,640.30, 27,959.44 and 5,492.79

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Solution

The fourth proportional to 18,640.30, 27,959.44 and 5,492.79 is: 8,238.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,640.30 : 27,959.44 = 5,492.79 : x
  2. Step 2: Convert to fraction form
    18,640.30/27,959.44 = 5,492.79/x
  3. Step 3: Cross multiply
    18,640.30x = 27,959.44 × 5,492.79
  4. Step 4: Simplify right side
    18,640.30x = 153,575,332.44
  5. Step 5: Solve for x
    x = 153,575,332.44/18,640.30
  6. Step 6: Final answer
    x = 8,238.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.