Home / 30,344.47-45,540.53-21,049.89

Finding the Fourth Proportional to 30,344.47, 45,540.53 and 21,049.89

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Solution

The fourth proportional to 30,344.47, 45,540.53 and 21,049.89 is: 31,591.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,344.47 : 45,540.53 = 21,049.89 : x
  2. Step 2: Convert to fraction form
    30,344.47/45,540.53 = 21,049.89/x
  3. Step 3: Cross multiply
    30,344.47x = 45,540.53 × 21,049.89
  4. Step 4: Simplify right side
    30,344.47x = 958,623,206.12
  5. Step 5: Solve for x
    x = 958,623,206.12/30,344.47
  6. Step 6: Final answer
    x = 31,591.36

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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.