Home / 20,650.04-28,494.62-12,150.29

Finding the Fourth Proportional to 20,650.04, 28,494.62 and 12,150.29

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Solution

The fourth proportional to 20,650.04, 28,494.62 and 12,150.29 is: 16,765.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,650.04 : 28,494.62 = 12,150.29 : x
  2. Step 2: Convert to fraction form
    20,650.04/28,494.62 = 12,150.29/x
  3. Step 3: Cross multiply
    20,650.04x = 28,494.62 × 12,150.29
  4. Step 4: Simplify right side
    20,650.04x = 346,217,693.22
  5. Step 5: Solve for x
    x = 346,217,693.22/20,650.04
  6. Step 6: Final answer
    x = 16,765.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.