Home / 20,750.18-31,130.19-5,958.77

Finding the Fourth Proportional to 20,750.18, 31,130.19 and 5,958.77

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Solution

The fourth proportional to 20,750.18, 31,130.19 and 5,958.77 is: 8,939.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,750.18 : 31,130.19 = 5,958.77 : x
  2. Step 2: Convert to fraction form
    20,750.18/31,130.19 = 5,958.77/x
  3. Step 3: Cross multiply
    20,750.18x = 31,130.19 × 5,958.77
  4. Step 4: Simplify right side
    20,750.18x = 185,497,486.62
  5. Step 5: Solve for x
    x = 185,497,486.62/20,750.18
  6. Step 6: Final answer
    x = 8,939.56

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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.