Home / 19,930.04-29,821.24-12,475.10

Finding the Fourth Proportional to 19,930.04, 29,821.24 and 12,475.10

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Solution

The fourth proportional to 19,930.04, 29,821.24 and 12,475.10 is: 18,666.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,930.04 : 29,821.24 = 12,475.10 : x
  2. Step 2: Convert to fraction form
    19,930.04/29,821.24 = 12,475.10/x
  3. Step 3: Cross multiply
    19,930.04x = 29,821.24 × 12,475.10
  4. Step 4: Simplify right side
    19,930.04x = 372,022,951.12
  5. Step 5: Solve for x
    x = 372,022,951.12/19,930.04
  6. Step 6: Final answer
    x = 18,666.44

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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.