Home / 47,231.34-70,825.80-13,939.70

Finding the Fourth Proportional to 47,231.34, 70,825.80 and 13,939.70

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Solution

The fourth proportional to 47,231.34, 70,825.80 and 13,939.70 is: 20,903.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,231.34 : 70,825.80 = 13,939.70 : x
  2. Step 2: Convert to fraction form
    47,231.34/70,825.80 = 13,939.70/x
  3. Step 3: Cross multiply
    47,231.34x = 70,825.80 × 13,939.70
  4. Step 4: Simplify right side
    47,231.34x = 987,290,404.26
  5. Step 5: Solve for x
    x = 987,290,404.26/47,231.34
  6. Step 6: Final answer
    x = 20,903.29

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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.