Home / 29,028.81-43,543.17-19,165.78

Finding the Fourth Proportional to 29,028.81, 43,543.17 and 19,165.78

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Solution

The fourth proportional to 29,028.81, 43,543.17 and 19,165.78 is: 28,748.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,028.81 : 43,543.17 = 19,165.78 : x
  2. Step 2: Convert to fraction form
    29,028.81/43,543.17 = 19,165.78/x
  3. Step 3: Cross multiply
    29,028.81x = 43,543.17 × 19,165.78
  4. Step 4: Simplify right side
    29,028.81x = 834,538,871.15
  5. Step 5: Solve for x
    x = 834,538,871.15/29,028.81
  6. Step 6: Final answer
    x = 28,748.64

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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.