Home / 20,371.96-30,559.76-5,580.96

Finding the Fourth Proportional to 20,371.96, 30,559.76 and 5,580.96

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Solution

The fourth proportional to 20,371.96, 30,559.76 and 5,580.96 is: 8,371.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,371.96 : 30,559.76 = 5,580.96 : x
  2. Step 2: Convert to fraction form
    20,371.96/30,559.76 = 5,580.96/x
  3. Step 3: Cross multiply
    20,371.96x = 30,559.76 × 5,580.96
  4. Step 4: Simplify right side
    20,371.96x = 170,552,798.17
  5. Step 5: Solve for x
    x = 170,552,798.17/20,371.96
  6. Step 6: Final answer
    x = 8,371.94

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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.