Home / 31,539.03-43,525.56-18,112.47

Finding the Fourth Proportional to 31,539.03, 43,525.56 and 18,112.47

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Solution

The fourth proportional to 31,539.03, 43,525.56 and 18,112.47 is: 24,996.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,539.03 : 43,525.56 = 18,112.47 : x
  2. Step 2: Convert to fraction form
    31,539.03/43,525.56 = 18,112.47/x
  3. Step 3: Cross multiply
    31,539.03x = 43,525.56 × 18,112.47
  4. Step 4: Simplify right side
    31,539.03x = 788,355,399.73
  5. Step 5: Solve for x
    x = 788,355,399.73/31,539.03
  6. Step 6: Final answer
    x = 24,996.18

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1.5x scale

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.