Home / 21,082.34-29,091.88-11,650.88

Finding the Fourth Proportional to 21,082.34, 29,091.88 and 11,650.88

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Solution

The fourth proportional to 21,082.34, 29,091.88 and 11,650.88 is: 16,077.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,082.34 : 29,091.88 = 11,650.88 : x
  2. Step 2: Convert to fraction form
    21,082.34/29,091.88 = 11,650.88/x
  3. Step 3: Cross multiply
    21,082.34x = 29,091.88 × 11,650.88
  4. Step 4: Simplify right side
    21,082.34x = 338,946,002.85
  5. Step 5: Solve for x
    x = 338,946,002.85/21,082.34
  6. Step 6: Final answer
    x = 16,077.25

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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.