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Finding the Fourth Proportional to 29,018, 43,459.50 and 28,219.85

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Solution

The fourth proportional to 29,018, 43,459.50 and 28,219.85 is: 42,264.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,018 : 43,459.50 = 28,219.85 : x
  2. Step 2: Convert to fraction form
    29,018/43,459.50 = 28,219.85/x
  3. Step 3: Cross multiply
    29,018x = 43,459.50 × 28,219.85
  4. Step 4: Simplify right side
    29,018x = 1,226,420,571.08
  5. Step 5: Solve for x
    x = 1,226,420,571.08/29,018
  6. Step 6: Final answer
    x = 42,264.13

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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.