Home / 42,949.64-64,435.43-13,367.70

Finding the Fourth Proportional to 42,949.64, 64,435.43 and 13,367.70

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Solution

The fourth proportional to 42,949.64, 64,435.43 and 13,367.70 is: 20,054.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,949.64 : 64,435.43 = 13,367.70 : x
  2. Step 2: Convert to fraction form
    42,949.64/64,435.43 = 13,367.70/x
  3. Step 3: Cross multiply
    42,949.64x = 64,435.43 × 13,367.70
  4. Step 4: Simplify right side
    42,949.64x = 861,353,531.03
  5. Step 5: Solve for x
    x = 861,353,531.03/42,949.64
  6. Step 6: Final answer
    x = 20,054.96

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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.