Home / 21,464.87-32,039.39-19,960.70

Finding the Fourth Proportional to 21,464.87, 32,039.39 and 19,960.70

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Solution

The fourth proportional to 21,464.87, 32,039.39 and 19,960.70 is: 29,794.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,464.87 : 32,039.39 = 19,960.70 : x
  2. Step 2: Convert to fraction form
    21,464.87/32,039.39 = 19,960.70/x
  3. Step 3: Cross multiply
    21,464.87x = 32,039.39 × 19,960.70
  4. Step 4: Simplify right side
    21,464.87x = 639,528,651.97
  5. Step 5: Solve for x
    x = 639,528,651.97/21,464.87
  6. Step 6: Final answer
    x = 29,794.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.