Home / 28,972.77-43,459.16-13,388.37

Finding the Fourth Proportional to 28,972.77, 43,459.16 and 13,388.37

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Solution

The fourth proportional to 28,972.77, 43,459.16 and 13,388.37 is: 20,082.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,972.77 : 43,459.16 = 13,388.37 : x
  2. Step 2: Convert to fraction form
    28,972.77/43,459.16 = 13,388.37/x
  3. Step 3: Cross multiply
    28,972.77x = 43,459.16 × 13,388.37
  4. Step 4: Simplify right side
    28,972.77x = 581,847,247.03
  5. Step 5: Solve for x
    x = 581,847,247.03/28,972.77
  6. Step 6: Final answer
    x = 20,082.56

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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.