Home / 29,043.89-40,005.88-20,531.37

Finding the Fourth Proportional to 29,043.89, 40,005.88 and 20,531.37

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Solution

The fourth proportional to 29,043.89, 40,005.88 and 20,531.37 is: 28,280.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,043.89 : 40,005.88 = 20,531.37 : x
  2. Step 2: Convert to fraction form
    29,043.89/40,005.88 = 20,531.37/x
  3. Step 3: Cross multiply
    29,043.89x = 40,005.88 × 20,531.37
  4. Step 4: Simplify right side
    29,043.89x = 821,375,373.11
  5. Step 5: Solve for x
    x = 821,375,373.11/29,043.89
  6. Step 6: Final answer
    x = 28,280.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.