Home / 21,349.85-29,462.23-11,790.43

Finding the Fourth Proportional to 21,349.85, 29,462.23 and 11,790.43

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Solution

The fourth proportional to 21,349.85, 29,462.23 and 11,790.43 is: 16,270.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,349.85 : 29,462.23 = 11,790.43 : x
  2. Step 2: Convert to fraction form
    21,349.85/29,462.23 = 11,790.43/x
  3. Step 3: Cross multiply
    21,349.85x = 29,462.23 × 11,790.43
  4. Step 4: Simplify right side
    21,349.85x = 347,372,301.54
  5. Step 5: Solve for x
    x = 347,372,301.54/21,349.85
  6. Step 6: Final answer
    x = 16,270.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.