Home / 20,410.52-30,616.18-5,619.92

Finding the Fourth Proportional to 20,410.52, 30,616.18 and 5,619.92

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Solution

The fourth proportional to 20,410.52, 30,616.18 and 5,619.92 is: 8,429.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,410.52 : 30,616.18 = 5,619.92 : x
  2. Step 2: Convert to fraction form
    20,410.52/30,616.18 = 5,619.92/x
  3. Step 3: Cross multiply
    20,410.52x = 30,616.18 × 5,619.92
  4. Step 4: Simplify right side
    20,410.52x = 172,060,315.17
  5. Step 5: Solve for x
    x = 172,060,315.17/20,410.52
  6. Step 6: Final answer
    x = 8,429.98

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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.