Home / 18,964.35-28,483.44-15,456.95

Finding the Fourth Proportional to 18,964.35, 28,483.44 and 15,456.95

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Solution

The fourth proportional to 18,964.35, 28,483.44 and 15,456.95 is: 23,215.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,964.35 : 28,483.44 = 15,456.95 : x
  2. Step 2: Convert to fraction form
    18,964.35/28,483.44 = 15,456.95/x
  3. Step 3: Cross multiply
    18,964.35x = 28,483.44 × 15,456.95
  4. Step 4: Simplify right side
    18,964.35x = 440,267,107.91
  5. Step 5: Solve for x
    x = 440,267,107.91/18,964.35
  6. Step 6: Final answer
    x = 23,215.51

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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.