Home / 31,390.52-47,097.90-13,847.96

Finding the Fourth Proportional to 31,390.52, 47,097.90 and 13,847.96

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Solution

The fourth proportional to 31,390.52, 47,097.90 and 13,847.96 is: 20,777.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,390.52 : 47,097.90 = 13,847.96 : x
  2. Step 2: Convert to fraction form
    31,390.52/47,097.90 = 13,847.96/x
  3. Step 3: Cross multiply
    31,390.52x = 47,097.90 × 13,847.96
  4. Step 4: Simplify right side
    31,390.52x = 652,209,835.28
  5. Step 5: Solve for x
    x = 652,209,835.28/31,390.52
  6. Step 6: Final answer
    x = 20,777.29

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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.