Home / 32,971.49-49,414.56-21,120.68

Finding the Fourth Proportional to 32,971.49, 49,414.56 and 21,120.68

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Solution

The fourth proportional to 32,971.49, 49,414.56 and 21,120.68 is: 31,653.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,971.49 : 49,414.56 = 21,120.68 : x
  2. Step 2: Convert to fraction form
    32,971.49/49,414.56 = 21,120.68/x
  3. Step 3: Cross multiply
    32,971.49x = 49,414.56 × 21,120.68
  4. Step 4: Simplify right side
    32,971.49x = 1,043,669,153.43
  5. Step 5: Solve for x
    x = 1,043,669,153.43/32,971.49
  6. Step 6: Final answer
    x = 31,653.69

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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.