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Finding the Fourth Proportional to 18,082.34, 27,128.40 and 16,347.32

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Solution

The fourth proportional to 18,082.34, 27,128.40 and 16,347.32 is: 24,525.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,082.34 : 27,128.40 = 16,347.32 : x
  2. Step 2: Convert to fraction form
    18,082.34/27,128.40 = 16,347.32/x
  3. Step 3: Cross multiply
    18,082.34x = 27,128.40 × 16,347.32
  4. Step 4: Simplify right side
    18,082.34x = 443,476,635.89
  5. Step 5: Solve for x
    x = 443,476,635.89/18,082.34
  6. Step 6: Final answer
    x = 24,525.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.