Home / 18,813.04-25,956.74-14,821.78

Finding the Fourth Proportional to 18,813.04, 25,956.74 and 14,821.78

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Solution

The fourth proportional to 18,813.04, 25,956.74 and 14,821.78 is: 20,449.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,813.04 : 25,956.74 = 14,821.78 : x
  2. Step 2: Convert to fraction form
    18,813.04/25,956.74 = 14,821.78/x
  3. Step 3: Cross multiply
    18,813.04x = 25,956.74 × 14,821.78
  4. Step 4: Simplify right side
    18,813.04x = 384,725,089.80
  5. Step 5: Solve for x
    x = 384,725,089.80/18,813.04
  6. Step 6: Final answer
    x = 20,449.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.