Home / 19,939.10-29,909.73-7,462.40

Finding the Fourth Proportional to 19,939.10, 29,909.73 and 7,462.40

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Solution

The fourth proportional to 19,939.10, 29,909.73 and 7,462.40 is: 11,194.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,939.10 : 29,909.73 = 7,462.40 : x
  2. Step 2: Convert to fraction form
    19,939.10/29,909.73 = 7,462.40/x
  3. Step 3: Cross multiply
    19,939.10x = 29,909.73 × 7,462.40
  4. Step 4: Simplify right side
    19,939.10x = 223,198,369.15
  5. Step 5: Solve for x
    x = 223,198,369.15/19,939.10
  6. Step 6: Final answer
    x = 11,194.00

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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.