Home / 20,299.36-28,021.74-12,344.14

Finding the Fourth Proportional to 20,299.36, 28,021.74 and 12,344.14

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Solution

The fourth proportional to 20,299.36, 28,021.74 and 12,344.14 is: 17,040.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,299.36 : 28,021.74 = 12,344.14 : x
  2. Step 2: Convert to fraction form
    20,299.36/28,021.74 = 12,344.14/x
  3. Step 3: Cross multiply
    20,299.36x = 28,021.74 × 12,344.14
  4. Step 4: Simplify right side
    20,299.36x = 345,904,281.60
  5. Step 5: Solve for x
    x = 345,904,281.60/20,299.36
  6. Step 6: Final answer
    x = 17,040.16

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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.