Home / 20,542.14-30,813.29-4,959.77

Finding the Fourth Proportional to 20,542.14, 30,813.29 and 4,959.77

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Solution

The fourth proportional to 20,542.14, 30,813.29 and 4,959.77 is: 7,439.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,542.14 : 30,813.29 = 4,959.77 : x
  2. Step 2: Convert to fraction form
    20,542.14/30,813.29 = 4,959.77/x
  3. Step 3: Cross multiply
    20,542.14x = 30,813.29 × 4,959.77
  4. Step 4: Simplify right side
    20,542.14x = 152,826,652.48
  5. Step 5: Solve for x
    x = 152,826,652.48/20,542.14
  6. Step 6: Final answer
    x = 7,439.67

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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.