Home / 40,005.75-60,011.72-11,923.66

Finding the Fourth Proportional to 40,005.75, 60,011.72 and 11,923.66

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Solution

The fourth proportional to 40,005.75, 60,011.72 and 11,923.66 is: 17,886.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,005.75 : 60,011.72 = 11,923.66 : x
  2. Step 2: Convert to fraction form
    40,005.75/60,011.72 = 11,923.66/x
  3. Step 3: Cross multiply
    40,005.75x = 60,011.72 × 11,923.66
  4. Step 4: Simplify right side
    40,005.75x = 715,559,067.84
  5. Step 5: Solve for x
    x = 715,559,067.84/40,005.75
  6. Step 6: Final answer
    x = 17,886.41

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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.