Home / 16,820.10-25,235.55-11,279.70

Finding the Fourth Proportional to 16,820.10, 25,235.55 and 11,279.70

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Solution

The fourth proportional to 16,820.10, 25,235.55 and 11,279.70 is: 16,923.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,820.10 : 25,235.55 = 11,279.70 : x
  2. Step 2: Convert to fraction form
    16,820.10/25,235.55 = 11,279.70/x
  3. Step 3: Cross multiply
    16,820.10x = 25,235.55 × 11,279.70
  4. Step 4: Simplify right side
    16,820.10x = 284,649,433.34
  5. Step 5: Solve for x
    x = 284,649,433.34/16,820.10
  6. Step 6: Final answer
    x = 16,923.17

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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.