Home / 40,128.69-60,178.84-11,659.73

Finding the Fourth Proportional to 40,128.69, 60,178.84 and 11,659.73

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Solution

The fourth proportional to 40,128.69, 60,178.84 and 11,659.73 is: 17,485.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,128.69 : 60,178.84 = 11,659.73 : x
  2. Step 2: Convert to fraction form
    40,128.69/60,178.84 = 11,659.73/x
  3. Step 3: Cross multiply
    40,128.69x = 60,178.84 × 11,659.73
  4. Step 4: Simplify right side
    40,128.69x = 701,668,696.07
  5. Step 5: Solve for x
    x = 701,668,696.07/40,128.69
  6. Step 6: Final answer
    x = 17,485.46

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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.