Home / 20,658.04-30,999.78-8,175.94

Finding the Fourth Proportional to 20,658.04, 30,999.78 and 8,175.94

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Solution

The fourth proportional to 20,658.04, 30,999.78 and 8,175.94 is: 12,268.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,658.04 : 30,999.78 = 8,175.94 : x
  2. Step 2: Convert to fraction form
    20,658.04/30,999.78 = 8,175.94/x
  3. Step 3: Cross multiply
    20,658.04x = 30,999.78 × 8,175.94
  4. Step 4: Simplify right side
    20,658.04x = 253,452,341.29
  5. Step 5: Solve for x
    x = 253,452,341.29/20,658.04
  6. Step 6: Final answer
    x = 12,268.94

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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.