Home / 20,817.04-28,733.52-11,869.42

Finding the Fourth Proportional to 20,817.04, 28,733.52 and 11,869.42

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Solution

The fourth proportional to 20,817.04, 28,733.52 and 11,869.42 is: 16,383.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,817.04 : 28,733.52 = 11,869.42 : x
  2. Step 2: Convert to fraction form
    20,817.04/28,733.52 = 11,869.42/x
  3. Step 3: Cross multiply
    20,817.04x = 28,733.52 × 11,869.42
  4. Step 4: Simplify right side
    20,817.04x = 341,050,216.96
  5. Step 5: Solve for x
    x = 341,050,216.96/20,817.04
  6. Step 6: Final answer
    x = 16,383.22

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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.