Home / 21,331.56-29,437.34-11,771.54

Finding the Fourth Proportional to 21,331.56, 29,437.34 and 11,771.54

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Solution

The fourth proportional to 21,331.56, 29,437.34 and 11,771.54 is: 16,244.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,331.56 : 29,437.34 = 11,771.54 : x
  2. Step 2: Convert to fraction form
    21,331.56/29,437.34 = 11,771.54/x
  3. Step 3: Cross multiply
    21,331.56x = 29,437.34 × 11,771.54
  4. Step 4: Simplify right side
    21,331.56x = 346,522,707.55
  5. Step 5: Solve for x
    x = 346,522,707.55/21,331.56
  6. Step 6: Final answer
    x = 16,244.60

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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.