Home / 43,868.72-65,811.96-14,278.61

Finding the Fourth Proportional to 43,868.72, 65,811.96 and 14,278.61

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Solution

The fourth proportional to 43,868.72, 65,811.96 and 14,278.61 is: 21,420.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,868.72 : 65,811.96 = 14,278.61 : x
  2. Step 2: Convert to fraction form
    43,868.72/65,811.96 = 14,278.61/x
  3. Step 3: Cross multiply
    43,868.72x = 65,811.96 × 14,278.61
  4. Step 4: Simplify right side
    43,868.72x = 939,703,238.78
  5. Step 5: Solve for x
    x = 939,703,238.78/43,868.72
  6. Step 6: Final answer
    x = 21,420.80

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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.