Home / 19,829.02-29,747.58-8,142.34

Finding the Fourth Proportional to 19,829.02, 29,747.58 and 8,142.34

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Solution

The fourth proportional to 19,829.02, 29,747.58 and 8,142.34 is: 12,215.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,829.02 : 29,747.58 = 8,142.34 : x
  2. Step 2: Convert to fraction form
    19,829.02/29,747.58 = 8,142.34/x
  3. Step 3: Cross multiply
    19,829.02x = 29,747.58 × 8,142.34
  4. Step 4: Simplify right side
    19,829.02x = 242,214,910.54
  5. Step 5: Solve for x
    x = 242,214,910.54/19,829.02
  6. Step 6: Final answer
    x = 12,215.17

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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.