Home / 19,005.92-28,508.88-5,154.56

Finding the Fourth Proportional to 19,005.92, 28,508.88 and 5,154.56

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Solution

The fourth proportional to 19,005.92, 28,508.88 and 5,154.56 is: 7,731.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,005.92 : 28,508.88 = 5,154.56 : x
  2. Step 2: Convert to fraction form
    19,005.92/28,508.88 = 5,154.56/x
  3. Step 3: Cross multiply
    19,005.92x = 28,508.88 × 5,154.56
  4. Step 4: Simplify right side
    19,005.92x = 146,950,732.49
  5. Step 5: Solve for x
    x = 146,950,732.49/19,005.92
  6. Step 6: Final answer
    x = 7,731.84

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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.