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Finding the Fourth Proportional to 20,048.76, 30,073.20 and 6,900.96

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Solution

The fourth proportional to 20,048.76, 30,073.20 and 6,900.96 is: 10,351.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,048.76 : 30,073.20 = 6,900.96 : x
  2. Step 2: Convert to fraction form
    20,048.76/30,073.20 = 6,900.96/x
  3. Step 3: Cross multiply
    20,048.76x = 30,073.20 × 6,900.96
  4. Step 4: Simplify right side
    20,048.76x = 207,533,950.27
  5. Step 5: Solve for x
    x = 207,533,950.27/20,048.76
  6. Step 6: Final answer
    x = 10,351.46

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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.