Home / 20,472.72-28,238.04-12,089.04

Finding the Fourth Proportional to 20,472.72, 28,238.04 and 12,089.04

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Solution

The fourth proportional to 20,472.72, 28,238.04 and 12,089.04 is: 16,674.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,472.72 : 28,238.04 = 12,089.04 : x
  2. Step 2: Convert to fraction form
    20,472.72/28,238.04 = 12,089.04/x
  3. Step 3: Cross multiply
    20,472.72x = 28,238.04 × 12,089.04
  4. Step 4: Simplify right side
    20,472.72x = 341,370,795.08
  5. Step 5: Solve for x
    x = 341,370,795.08/20,472.72
  6. Step 6: Final answer
    x = 16,674.42

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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.