Home / 18,935.64-28,403.54-5,787.96

Finding the Fourth Proportional to 18,935.64, 28,403.54 and 5,787.96

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Solution

The fourth proportional to 18,935.64, 28,403.54 and 5,787.96 is: 8,681.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,935.64 : 28,403.54 = 5,787.96 : x
  2. Step 2: Convert to fraction form
    18,935.64/28,403.54 = 5,787.96/x
  3. Step 3: Cross multiply
    18,935.64x = 28,403.54 × 5,787.96
  4. Step 4: Simplify right side
    18,935.64x = 164,398,553.38
  5. Step 5: Solve for x
    x = 164,398,553.38/18,935.64
  6. Step 6: Final answer
    x = 8,681.96

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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.