Home / 18,952.96-28,439.04-12,784

Finding the Fourth Proportional to 18,952.96, 28,439.04 and 12,784

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Solution

The fourth proportional to 18,952.96, 28,439.04 and 12,784 is: 19,182.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,952.96 : 28,439.04 = 12,784 : x
  2. Step 2: Convert to fraction form
    18,952.96/28,439.04 = 12,784/x
  3. Step 3: Cross multiply
    18,952.96x = 28,439.04 × 12,784
  4. Step 4: Simplify right side
    18,952.96x = 363,564,687.36
  5. Step 5: Solve for x
    x = 363,564,687.36/18,952.96
  6. Step 6: Final answer
    x = 19,182.48

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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.