Home / 21,462.09-32,205.69-8,981.07

Finding the Fourth Proportional to 21,462.09, 32,205.69 and 8,981.07

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Solution

The fourth proportional to 21,462.09, 32,205.69 and 8,981.07 is: 13,476.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,462.09 : 32,205.69 = 8,981.07 : x
  2. Step 2: Convert to fraction form
    21,462.09/32,205.69 = 8,981.07/x
  3. Step 3: Cross multiply
    21,462.09x = 32,205.69 × 8,981.07
  4. Step 4: Simplify right side
    21,462.09x = 289,241,556.29
  5. Step 5: Solve for x
    x = 289,241,556.29/21,462.09
  6. Step 6: Final answer
    x = 13,476.86

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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.