Home / 21,751.12-32,554.68-18,709.84

Finding the Fourth Proportional to 21,751.12, 32,554.68 and 18,709.84

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Solution

The fourth proportional to 21,751.12, 32,554.68 and 18,709.84 is: 28,002.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,751.12 : 32,554.68 = 18,709.84 : x
  2. Step 2: Convert to fraction form
    21,751.12/32,554.68 = 18,709.84/x
  3. Step 3: Cross multiply
    21,751.12x = 32,554.68 × 18,709.84
  4. Step 4: Simplify right side
    21,751.12x = 609,092,854.05
  5. Step 5: Solve for x
    x = 609,092,854.05/21,751.12
  6. Step 6: Final answer
    x = 28,002.83

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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.