Home / 20,032.92-30,005.64-12,218.04

Finding the Fourth Proportional to 20,032.92, 30,005.64 and 12,218.04

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Solution

The fourth proportional to 20,032.92, 30,005.64 and 12,218.04 is: 18,300.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,032.92 : 30,005.64 = 12,218.04 : x
  2. Step 2: Convert to fraction form
    20,032.92/30,005.64 = 12,218.04/x
  3. Step 3: Cross multiply
    20,032.92x = 30,005.64 × 12,218.04
  4. Step 4: Simplify right side
    20,032.92x = 366,610,109.75
  5. Step 5: Solve for x
    x = 366,610,109.75/20,032.92
  6. Step 6: Final answer
    x = 18,300.38

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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.