Home / 43,820.16-65,731.20-14,238

Finding the Fourth Proportional to 43,820.16, 65,731.20 and 14,238

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Solution

The fourth proportional to 43,820.16, 65,731.20 and 14,238 is: 21,357.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,820.16 : 65,731.20 = 14,238 : x
  2. Step 2: Convert to fraction form
    43,820.16/65,731.20 = 14,238/x
  3. Step 3: Cross multiply
    43,820.16x = 65,731.20 × 14,238
  4. Step 4: Simplify right side
    43,820.16x = 935,880,825.60
  5. Step 5: Solve for x
    x = 935,880,825.60/43,820.16
  6. Step 6: Final answer
    x = 21,357.31

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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.