Home / 20,627.18-28,465.96-11,674.69

Finding the Fourth Proportional to 20,627.18, 28,465.96 and 11,674.69

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Solution

The fourth proportional to 20,627.18, 28,465.96 and 11,674.69 is: 16,111.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,627.18 : 28,465.96 = 11,674.69 : x
  2. Step 2: Convert to fraction form
    20,627.18/28,465.96 = 11,674.69/x
  3. Step 3: Cross multiply
    20,627.18x = 28,465.96 × 11,674.69
  4. Step 4: Simplify right side
    20,627.18x = 332,331,158.20
  5. Step 5: Solve for x
    x = 332,331,158.20/20,627.18
  6. Step 6: Final answer
    x = 16,111.33

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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.