Home / 47,218.91-70,811.86-13,930.14

Finding the Fourth Proportional to 47,218.91, 70,811.86 and 13,930.14

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Solution

The fourth proportional to 47,218.91, 70,811.86 and 13,930.14 is: 20,890.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,218.91 : 70,811.86 = 13,930.14 : x
  2. Step 2: Convert to fraction form
    47,218.91/70,811.86 = 13,930.14/x
  3. Step 3: Cross multiply
    47,218.91x = 70,811.86 × 13,930.14
  4. Step 4: Simplify right side
    47,218.91x = 986,419,123.46
  5. Step 5: Solve for x
    x = 986,419,123.46/47,218.91
  6. Step 6: Final answer
    x = 20,890.34

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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.