Home / 31,505.21-47,234.34-13,732.50

Finding the Fourth Proportional to 31,505.21, 47,234.34 and 13,732.50

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Solution

The fourth proportional to 31,505.21, 47,234.34 and 13,732.50 is: 20,588.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,505.21 : 47,234.34 = 13,732.50 : x
  2. Step 2: Convert to fraction form
    31,505.21/47,234.34 = 13,732.50/x
  3. Step 3: Cross multiply
    31,505.21x = 47,234.34 × 13,732.50
  4. Step 4: Simplify right side
    31,505.21x = 648,645,352.64
  5. Step 5: Solve for x
    x = 648,645,352.64/31,505.21
  6. Step 6: Final answer
    x = 20,588.51

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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.