Home / 19,420.91-29,125.20-8,324.63

Finding the Fourth Proportional to 19,420.91, 29,125.20 and 8,324.63

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Solution

The fourth proportional to 19,420.91, 29,125.20 and 8,324.63 is: 12,484.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,420.91 : 29,125.20 = 8,324.63 : x
  2. Step 2: Convert to fraction form
    19,420.91/29,125.20 = 8,324.63/x
  3. Step 3: Cross multiply
    19,420.91x = 29,125.20 × 8,324.63
  4. Step 4: Simplify right side
    19,420.91x = 242,456,513.68
  5. Step 5: Solve for x
    x = 242,456,513.68/19,420.91
  6. Step 6: Final answer
    x = 12,484.30

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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.