Home / 20,234.10-27,922.95-11,281.71

Finding the Fourth Proportional to 20,234.10, 27,922.95 and 11,281.71

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Solution

The fourth proportional to 20,234.10, 27,922.95 and 11,281.71 is: 15,568.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,234.10 : 27,922.95 = 11,281.71 : x
  2. Step 2: Convert to fraction form
    20,234.10/27,922.95 = 11,281.71/x
  3. Step 3: Cross multiply
    20,234.10x = 27,922.95 × 11,281.71
  4. Step 4: Simplify right side
    20,234.10x = 315,018,624.24
  5. Step 5: Solve for x
    x = 315,018,624.24/20,234.10
  6. Step 6: Final answer
    x = 15,568.70

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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.