Home / 21,756.92-30,079.44-16,082.72

Finding the Fourth Proportional to 21,756.92, 30,079.44 and 16,082.72

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Solution

The fourth proportional to 21,756.92, 30,079.44 and 16,082.72 is: 22,234.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,756.92 : 30,079.44 = 16,082.72 : x
  2. Step 2: Convert to fraction form
    21,756.92/30,079.44 = 16,082.72/x
  3. Step 3: Cross multiply
    21,756.92x = 30,079.44 × 16,082.72
  4. Step 4: Simplify right side
    21,756.92x = 483,759,211.28
  5. Step 5: Solve for x
    x = 483,759,211.28/21,756.92
  6. Step 6: Final answer
    x = 22,234.73

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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.