Home / 14,281.38-21,422.78-3,751.45

Finding the Fourth Proportional to 14,281.38, 21,422.78 and 3,751.45

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Solution

The fourth proportional to 14,281.38, 21,422.78 and 3,751.45 is: 5,627.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,281.38 : 21,422.78 = 3,751.45 : x
  2. Step 2: Convert to fraction form
    14,281.38/21,422.78 = 3,751.45/x
  3. Step 3: Cross multiply
    14,281.38x = 21,422.78 × 3,751.45
  4. Step 4: Simplify right side
    14,281.38x = 80,366,488.03
  5. Step 5: Solve for x
    x = 80,366,488.03/14,281.38
  6. Step 6: Final answer
    x = 5,627.36

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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.