Home / 21,082.23-29,034.24-20,622.96

Finding the Fourth Proportional to 21,082.23, 29,034.24 and 20,622.96

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Solution

The fourth proportional to 21,082.23, 29,034.24 and 20,622.96 is: 28,401.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,082.23 : 29,034.24 = 20,622.96 : x
  2. Step 2: Convert to fraction form
    21,082.23/29,034.24 = 20,622.96/x
  3. Step 3: Cross multiply
    21,082.23x = 29,034.24 × 20,622.96
  4. Step 4: Simplify right side
    21,082.23x = 598,771,970.15
  5. Step 5: Solve for x
    x = 598,771,970.15/21,082.23
  6. Step 6: Final answer
    x = 28,401.74

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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.