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Finding the Fourth Proportional to 32,711.40, 49,067.10 and 21,047.40

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Solution

The fourth proportional to 32,711.40, 49,067.10 and 21,047.40 is: 31,571.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,711.40 : 49,067.10 = 21,047.40 : x
  2. Step 2: Convert to fraction form
    32,711.40/49,067.10 = 21,047.40/x
  3. Step 3: Cross multiply
    32,711.40x = 49,067.10 × 21,047.40
  4. Step 4: Simplify right side
    32,711.40x = 1,032,734,880.54
  5. Step 5: Solve for x
    x = 1,032,734,880.54/32,711.40
  6. Step 6: Final answer
    x = 31,571.10

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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.