Home / 20,763.45-31,150.50-5,973.52

Finding the Fourth Proportional to 20,763.45, 31,150.50 and 5,973.52

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Solution

The fourth proportional to 20,763.45, 31,150.50 and 5,973.52 is: 8,961.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763.45 : 31,150.50 = 5,973.52 : x
  2. Step 2: Convert to fraction form
    20,763.45/31,150.50 = 5,973.52/x
  3. Step 3: Cross multiply
    20,763.45x = 31,150.50 × 5,973.52
  4. Step 4: Simplify right side
    20,763.45x = 186,078,134.76
  5. Step 5: Solve for x
    x = 186,078,134.76/20,763.45
  6. Step 6: Final answer
    x = 8,961.81

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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.