Home / 20,337.08-30,506.70-6,485

Finding the Fourth Proportional to 20,337.08, 30,506.70 and 6,485

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Solution

The fourth proportional to 20,337.08, 30,506.70 and 6,485 is: 9,727.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,337.08 : 30,506.70 = 6,485 : x
  2. Step 2: Convert to fraction form
    20,337.08/30,506.70 = 6,485/x
  3. Step 3: Cross multiply
    20,337.08x = 30,506.70 × 6,485
  4. Step 4: Simplify right side
    20,337.08x = 197,835,949.50
  5. Step 5: Solve for x
    x = 197,835,949.50/20,337.08
  6. Step 6: Final answer
    x = 9,727.84

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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.