Home / 28,544.80-42,719.04-18,009.92

Finding the Fourth Proportional to 28,544.80, 42,719.04 and 18,009.92

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Solution

The fourth proportional to 28,544.80, 42,719.04 and 18,009.92 is: 26,952.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,544.80 : 42,719.04 = 18,009.92 : x
  2. Step 2: Convert to fraction form
    28,544.80/42,719.04 = 18,009.92/x
  3. Step 3: Cross multiply
    28,544.80x = 42,719.04 × 18,009.92
  4. Step 4: Simplify right side
    28,544.80x = 769,366,492.88
  5. Step 5: Solve for x
    x = 769,366,492.88/28,544.80
  6. Step 6: Final answer
    x = 26,952.95

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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.