Home / 18,935.60-28,403.26-5,787.92

Finding the Fourth Proportional to 18,935.60, 28,403.26 and 5,787.92

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Solution

The fourth proportional to 18,935.60, 28,403.26 and 5,787.92 is: 8,681.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,935.60 : 28,403.26 = 5,787.92 : x
  2. Step 2: Convert to fraction form
    18,935.60/28,403.26 = 5,787.92/x
  3. Step 3: Cross multiply
    18,935.60x = 28,403.26 × 5,787.92
  4. Step 4: Simplify right side
    18,935.60x = 164,395,796.62
  5. Step 5: Solve for x
    x = 164,395,796.62/18,935.60
  6. Step 6: Final answer
    x = 8,681.84

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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.