Home / 20,559.76-30,839.54-4,977.38

Finding the Fourth Proportional to 20,559.76, 30,839.54 and 4,977.38

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Solution

The fourth proportional to 20,559.76, 30,839.54 and 4,977.38 is: 7,466.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.76 : 30,839.54 = 4,977.38 : x
  2. Step 2: Convert to fraction form
    20,559.76/30,839.54 = 4,977.38/x
  3. Step 3: Cross multiply
    20,559.76x = 30,839.54 × 4,977.38
  4. Step 4: Simplify right side
    20,559.76x = 153,500,161.82
  5. Step 5: Solve for x
    x = 153,500,161.82/20,559.76
  6. Step 6: Final answer
    x = 7,466.05

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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.