Home / 42,891.26-64,333.80-13,308.33

Finding the Fourth Proportional to 42,891.26, 64,333.80 and 13,308.33

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Solution

The fourth proportional to 42,891.26, 64,333.80 and 13,308.33 is: 19,961.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,891.26 : 64,333.80 = 13,308.33 : x
  2. Step 2: Convert to fraction form
    42,891.26/64,333.80 = 13,308.33/x
  3. Step 3: Cross multiply
    42,891.26x = 64,333.80 × 13,308.33
  4. Step 4: Simplify right side
    42,891.26x = 856,175,440.55
  5. Step 5: Solve for x
    x = 856,175,440.55/42,891.26
  6. Step 6: Final answer
    x = 19,961.54

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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.