Home / 43,821.28-65,718-14,232.28

Finding the Fourth Proportional to 43,821.28, 65,718 and 14,232.28

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Solution

The fourth proportional to 43,821.28, 65,718 and 14,232.28 is: 21,343.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,821.28 : 65,718 = 14,232.28 : x
  2. Step 2: Convert to fraction form
    43,821.28/65,718 = 14,232.28/x
  3. Step 3: Cross multiply
    43,821.28x = 65,718 × 14,232.28
  4. Step 4: Simplify right side
    43,821.28x = 935,316,977.04
  5. Step 5: Solve for x
    x = 935,316,977.04/43,821.28
  6. Step 6: Final answer
    x = 21,343.90

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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.