Home / 20,217.84-27,889.92-16,445.04

Finding the Fourth Proportional to 20,217.84, 27,889.92 and 16,445.04

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Solution

The fourth proportional to 20,217.84, 27,889.92 and 16,445.04 is: 22,685.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,217.84 : 27,889.92 = 16,445.04 : x
  2. Step 2: Convert to fraction form
    20,217.84/27,889.92 = 16,445.04/x
  3. Step 3: Cross multiply
    20,217.84x = 27,889.92 × 16,445.04
  4. Step 4: Simplify right side
    20,217.84x = 458,650,850.00
  5. Step 5: Solve for x
    x = 458,650,850.00/20,217.84
  6. Step 6: Final answer
    x = 22,685.45

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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.