Home / 20,542.86-30,814.38-4,960.50

Finding the Fourth Proportional to 20,542.86, 30,814.38 and 4,960.50

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Solution

The fourth proportional to 20,542.86, 30,814.38 and 4,960.50 is: 7,440.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,542.86 : 30,814.38 = 4,960.50 : x
  2. Step 2: Convert to fraction form
    20,542.86/30,814.38 = 4,960.50/x
  3. Step 3: Cross multiply
    20,542.86x = 30,814.38 × 4,960.50
  4. Step 4: Simplify right side
    20,542.86x = 152,854,731.99
  5. Step 5: Solve for x
    x = 152,854,731.99/20,542.86
  6. Step 6: Final answer
    x = 7,440.77

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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.