Home / 30,376.31-45,559.21-13,732.47

Finding the Fourth Proportional to 30,376.31, 45,559.21 and 13,732.47

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Solution

The fourth proportional to 30,376.31, 45,559.21 and 13,732.47 is: 20,596.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,376.31 : 45,559.21 = 13,732.47 : x
  2. Step 2: Convert to fraction form
    30,376.31/45,559.21 = 13,732.47/x
  3. Step 3: Cross multiply
    30,376.31x = 45,559.21 × 13,732.47
  4. Step 4: Simplify right side
    30,376.31x = 625,640,415.89
  5. Step 5: Solve for x
    x = 625,640,415.89/30,376.31
  6. Step 6: Final answer
    x = 20,596.33

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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.