Home / 20,417.32-28,167.86-11,797.81

Finding the Fourth Proportional to 20,417.32, 28,167.86 and 11,797.81

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Solution

The fourth proportional to 20,417.32, 28,167.86 and 11,797.81 is: 16,276.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,417.32 : 28,167.86 = 11,797.81 : x
  2. Step 2: Convert to fraction form
    20,417.32/28,167.86 = 11,797.81/x
  3. Step 3: Cross multiply
    20,417.32x = 28,167.86 × 11,797.81
  4. Step 4: Simplify right side
    20,417.32x = 332,318,890.05
  5. Step 5: Solve for x
    x = 332,318,890.05/20,417.32
  6. Step 6: Final answer
    x = 16,276.32

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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.