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Finding the Fourth Proportional to 20,607, 30,909.06 and 10,751.84

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Solution

The fourth proportional to 20,607, 30,909.06 and 10,751.84 is: 16,127.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,607 : 30,909.06 = 10,751.84 : x
  2. Step 2: Convert to fraction form
    20,607/30,909.06 = 10,751.84/x
  3. Step 3: Cross multiply
    20,607x = 30,909.06 × 10,751.84
  4. Step 4: Simplify right side
    20,607x = 332,329,267.67
  5. Step 5: Solve for x
    x = 332,329,267.67/20,607
  6. Step 6: Final answer
    x = 16,127.01

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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.