Home / 29,445.78-40,636.26-16,872.96

Finding the Fourth Proportional to 29,445.78, 40,636.26 and 16,872.96

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Solution

The fourth proportional to 29,445.78, 40,636.26 and 16,872.96 is: 23,285.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,445.78 : 40,636.26 = 16,872.96 : x
  2. Step 2: Convert to fraction form
    29,445.78/40,636.26 = 16,872.96/x
  3. Step 3: Cross multiply
    29,445.78x = 40,636.26 × 16,872.96
  4. Step 4: Simplify right side
    29,445.78x = 685,653,989.53
  5. Step 5: Solve for x
    x = 685,653,989.53/29,445.78
  6. Step 6: Final answer
    x = 23,285.31

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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.