Home / 43,457.12-65,227.82-20,983.64

Finding the Fourth Proportional to 43,457.12, 65,227.82 and 20,983.64

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Solution

The fourth proportional to 43,457.12, 65,227.82 and 20,983.64 is: 31,495.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,457.12 : 65,227.82 = 20,983.64 : x
  2. Step 2: Convert to fraction form
    43,457.12/65,227.82 = 20,983.64/x
  3. Step 3: Cross multiply
    43,457.12x = 65,227.82 × 20,983.64
  4. Step 4: Simplify right side
    43,457.12x = 1,368,717,028.71
  5. Step 5: Solve for x
    x = 1,368,717,028.71/43,457.12
  6. Step 6: Final answer
    x = 31,495.80

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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.