Home / 28,974.90-39,984.85-16,227.96

Finding the Fourth Proportional to 28,974.90, 39,984.85 and 16,227.96

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Solution

The fourth proportional to 28,974.90, 39,984.85 and 16,227.96 is: 22,394.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,974.90 : 39,984.85 = 16,227.96 : x
  2. Step 2: Convert to fraction form
    28,974.90/39,984.85 = 16,227.96/x
  3. Step 3: Cross multiply
    28,974.90x = 39,984.85 × 16,227.96
  4. Step 4: Simplify right side
    28,974.90x = 648,872,495.80
  5. Step 5: Solve for x
    x = 648,872,495.80/28,974.90
  6. Step 6: Final answer
    x = 22,394.29

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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.