Home / 20,267.92-30,402.24-10,915.60

Finding the Fourth Proportional to 20,267.92, 30,402.24 and 10,915.60

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Solution

The fourth proportional to 20,267.92, 30,402.24 and 10,915.60 is: 16,373.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,267.92 : 30,402.24 = 10,915.60 : x
  2. Step 2: Convert to fraction form
    20,267.92/30,402.24 = 10,915.60/x
  3. Step 3: Cross multiply
    20,267.92x = 30,402.24 × 10,915.60
  4. Step 4: Simplify right side
    20,267.92x = 331,858,690.94
  5. Step 5: Solve for x
    x = 331,858,690.94/20,267.92
  6. Step 6: Final answer
    x = 16,373.59

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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.