Home / 47,715.39-71,568.23-12,658.59

Finding the Fourth Proportional to 47,715.39, 71,568.23 and 12,658.59

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Solution

The fourth proportional to 47,715.39, 71,568.23 and 12,658.59 is: 18,986.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,715.39 : 71,568.23 = 12,658.59 : x
  2. Step 2: Convert to fraction form
    47,715.39/71,568.23 = 12,658.59/x
  3. Step 3: Cross multiply
    47,715.39x = 71,568.23 × 12,658.59
  4. Step 4: Simplify right side
    47,715.39x = 905,952,817.30
  5. Step 5: Solve for x
    x = 905,952,817.30/47,715.39
  6. Step 6: Final answer
    x = 18,986.60

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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.