Home / 40,479.26-60,709.09-20,747.66

Finding the Fourth Proportional to 40,479.26, 60,709.09 and 20,747.66

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Solution

The fourth proportional to 40,479.26, 60,709.09 and 20,747.66 is: 31,116.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,479.26 : 60,709.09 = 20,747.66 : x
  2. Step 2: Convert to fraction form
    40,479.26/60,709.09 = 20,747.66/x
  3. Step 3: Cross multiply
    40,479.26x = 60,709.09 × 20,747.66
  4. Step 4: Simplify right side
    40,479.26x = 1,259,571,558.23
  5. Step 5: Solve for x
    x = 1,259,571,558.23/40,479.26
  6. Step 6: Final answer
    x = 31,116.47

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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.