Home / 47,143.35-70,704.09-20,833.74

Finding the Fourth Proportional to 47,143.35, 70,704.09 and 20,833.74

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Solution

The fourth proportional to 47,143.35, 70,704.09 and 20,833.74 is: 31,245.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,143.35 : 70,704.09 = 20,833.74 : x
  2. Step 2: Convert to fraction form
    47,143.35/70,704.09 = 20,833.74/x
  3. Step 3: Cross multiply
    47,143.35x = 70,704.09 × 20,833.74
  4. Step 4: Simplify right side
    47,143.35x = 1,473,030,628.00
  5. Step 5: Solve for x
    x = 1,473,030,628.00/47,143.35
  6. Step 6: Final answer
    x = 31,245.78

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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.