Home / 20,595.57-28,421.72-11,644.83

Finding the Fourth Proportional to 20,595.57, 28,421.72 and 11,644.83

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Solution

The fourth proportional to 20,595.57, 28,421.72 and 11,644.83 is: 16,069.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,595.57 : 28,421.72 = 11,644.83 : x
  2. Step 2: Convert to fraction form
    20,595.57/28,421.72 = 11,644.83/x
  3. Step 3: Cross multiply
    20,595.57x = 28,421.72 × 11,644.83
  4. Step 4: Simplify right side
    20,595.57x = 330,966,083.15
  5. Step 5: Solve for x
    x = 330,966,083.15/20,595.57
  6. Step 6: Final answer
    x = 16,069.77

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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.