Home / 18,913.62-28,343.88-14,947.44

Finding the Fourth Proportional to 18,913.62, 28,343.88 and 14,947.44

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Solution

The fourth proportional to 18,913.62, 28,343.88 and 14,947.44 is: 22,400.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,913.62 : 28,343.88 = 14,947.44 : x
  2. Step 2: Convert to fraction form
    18,913.62/28,343.88 = 14,947.44/x
  3. Step 3: Cross multiply
    18,913.62x = 28,343.88 × 14,947.44
  4. Step 4: Simplify right side
    18,913.62x = 423,668,370.93
  5. Step 5: Solve for x
    x = 423,668,370.93/18,913.62
  6. Step 6: Final answer
    x = 22,400.17

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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.