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Finding the Fourth Proportional to 21,609.84, 32,387.07 and 16,669.11

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Solution

The fourth proportional to 21,609.84, 32,387.07 and 16,669.11 is: 24,982.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,609.84 : 32,387.07 = 16,669.11 : x
  2. Step 2: Convert to fraction form
    21,609.84/32,387.07 = 16,669.11/x
  3. Step 3: Cross multiply
    21,609.84x = 32,387.07 × 16,669.11
  4. Step 4: Simplify right side
    21,609.84x = 539,863,632.41
  5. Step 5: Solve for x
    x = 539,863,632.41/21,609.84
  6. Step 6: Final answer
    x = 24,982.31

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1.5x scale

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.