Home / 28,982.21-43,402.03-14,143.28

Finding the Fourth Proportional to 28,982.21, 43,402.03 and 14,143.28

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Solution

The fourth proportional to 28,982.21, 43,402.03 and 14,143.28 is: 21,180.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,982.21 : 43,402.03 = 14,143.28 : x
  2. Step 2: Convert to fraction form
    28,982.21/43,402.03 = 14,143.28/x
  3. Step 3: Cross multiply
    28,982.21x = 43,402.03 × 14,143.28
  4. Step 4: Simplify right side
    28,982.21x = 613,846,810.49
  5. Step 5: Solve for x
    x = 613,846,810.49/28,982.21
  6. Step 6: Final answer
    x = 21,180.13

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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.