Home / 21,073.55-29,082.33-12,121.04

Finding the Fourth Proportional to 21,073.55, 29,082.33 and 12,121.04

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Solution

The fourth proportional to 21,073.55, 29,082.33 and 12,121.04 is: 16,727.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,073.55 : 29,082.33 = 12,121.04 : x
  2. Step 2: Convert to fraction form
    21,073.55/29,082.33 = 12,121.04/x
  3. Step 3: Cross multiply
    21,073.55x = 29,082.33 × 12,121.04
  4. Step 4: Simplify right side
    21,073.55x = 352,508,157.93
  5. Step 5: Solve for x
    x = 352,508,157.93/21,073.55
  6. Step 6: Final answer
    x = 16,727.52

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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.