Home / 28,281.70-42,422.32-11,414.45

Finding the Fourth Proportional to 28,281.70, 42,422.32 and 11,414.45

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Solution

The fourth proportional to 28,281.70, 42,422.32 and 11,414.45 is: 17,121.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,281.70 : 42,422.32 = 11,414.45 : x
  2. Step 2: Convert to fraction form
    28,281.70/42,422.32 = 11,414.45/x
  3. Step 3: Cross multiply
    28,281.70x = 42,422.32 × 11,414.45
  4. Step 4: Simplify right side
    28,281.70x = 484,227,506.64
  5. Step 5: Solve for x
    x = 484,227,506.64/28,281.70
  6. Step 6: Final answer
    x = 17,121.58

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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.