Home / 20,657.04-30,998.28-8,174.94

Finding the Fourth Proportional to 20,657.04, 30,998.28 and 8,174.94

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Solution

The fourth proportional to 20,657.04, 30,998.28 and 8,174.94 is: 12,267.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,657.04 : 30,998.28 = 8,174.94 : x
  2. Step 2: Convert to fraction form
    20,657.04/30,998.28 = 8,174.94/x
  3. Step 3: Cross multiply
    20,657.04x = 30,998.28 × 8,174.94
  4. Step 4: Simplify right side
    20,657.04x = 253,409,079.10
  5. Step 5: Solve for x
    x = 253,409,079.10/20,657.04
  6. Step 6: Final answer
    x = 12,267.44

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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.