Home / 20,600.36-30,904.86-8,915.24

Finding the Fourth Proportional to 20,600.36, 30,904.86 and 8,915.24

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Solution

The fourth proportional to 20,600.36, 30,904.86 and 8,915.24 is: 13,374.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,600.36 : 30,904.86 = 8,915.24 : x
  2. Step 2: Convert to fraction form
    20,600.36/30,904.86 = 8,915.24/x
  3. Step 3: Cross multiply
    20,600.36x = 30,904.86 × 8,915.24
  4. Step 4: Simplify right side
    20,600.36x = 275,524,244.07
  5. Step 5: Solve for x
    x = 275,524,244.07/20,600.36
  6. Step 6: Final answer
    x = 13,374.73

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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.