Home / 20,749.92-31,115.70-5,955.41

Finding the Fourth Proportional to 20,749.92, 31,115.70 and 5,955.41

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Solution

The fourth proportional to 20,749.92, 31,115.70 and 5,955.41 is: 8,930.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,749.92 : 31,115.70 = 5,955.41 : x
  2. Step 2: Convert to fraction form
    20,749.92/31,115.70 = 5,955.41/x
  3. Step 3: Cross multiply
    20,749.92x = 31,115.70 × 5,955.41
  4. Step 4: Simplify right side
    20,749.92x = 185,306,595.36
  5. Step 5: Solve for x
    x = 185,306,595.36/20,749.92
  6. Step 6: Final answer
    x = 8,930.47

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1.5x scale

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.