Home / 40,018.56-60,040.80-13,722.72

Finding the Fourth Proportional to 40,018.56, 60,040.80 and 13,722.72

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Solution

The fourth proportional to 40,018.56, 60,040.80 and 13,722.72 is: 20,588.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,018.56 : 60,040.80 = 13,722.72 : x
  2. Step 2: Convert to fraction form
    40,018.56/60,040.80 = 13,722.72/x
  3. Step 3: Cross multiply
    40,018.56x = 60,040.80 × 13,722.72
  4. Step 4: Simplify right side
    40,018.56x = 823,923,086.98
  5. Step 5: Solve for x
    x = 823,923,086.98/40,018.56
  6. Step 6: Final answer
    x = 20,588.52

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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.