Home / 31,849.80-47,793.60-12,130.35

Finding the Fourth Proportional to 31,849.80, 47,793.60 and 12,130.35

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Solution

The fourth proportional to 31,849.80, 47,793.60 and 12,130.35 is: 18,202.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,849.80 : 47,793.60 = 12,130.35 : x
  2. Step 2: Convert to fraction form
    31,849.80/47,793.60 = 12,130.35/x
  3. Step 3: Cross multiply
    31,849.80x = 47,793.60 × 12,130.35
  4. Step 4: Simplify right side
    31,849.80x = 579,753,095.76
  5. Step 5: Solve for x
    x = 579,753,095.76/31,849.80
  6. Step 6: Final answer
    x = 18,202.72

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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.