Home / 19,728.47-29,591.89-10,957.79

Finding the Fourth Proportional to 19,728.47, 29,591.89 and 10,957.79

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Solution

The fourth proportional to 19,728.47, 29,591.89 and 10,957.79 is: 16,436.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,728.47 : 29,591.89 = 10,957.79 : x
  2. Step 2: Convert to fraction form
    19,728.47/29,591.89 = 10,957.79/x
  3. Step 3: Cross multiply
    19,728.47x = 29,591.89 × 10,957.79
  4. Step 4: Simplify right side
    19,728.47x = 324,261,716.32
  5. Step 5: Solve for x
    x = 324,261,716.32/19,728.47
  6. Step 6: Final answer
    x = 16,436.23

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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.