Home / 42,611.47-63,917.21-13,029.31

Finding the Fourth Proportional to 42,611.47, 63,917.21 and 13,029.31

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Solution

The fourth proportional to 42,611.47, 63,917.21 and 13,029.31 is: 19,543.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,611.47 : 63,917.21 = 13,029.31 : x
  2. Step 2: Convert to fraction form
    42,611.47/63,917.21 = 13,029.31/x
  3. Step 3: Cross multiply
    42,611.47x = 63,917.21 × 13,029.31
  4. Step 4: Simplify right side
    42,611.47x = 832,797,016.21
  5. Step 5: Solve for x
    x = 832,797,016.21/42,611.47
  6. Step 6: Final answer
    x = 19,543.96

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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.