Home / 20,331.10-30,492.60-9,801.10

Finding the Fourth Proportional to 20,331.10, 30,492.60 and 9,801.10

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Solution

The fourth proportional to 20,331.10, 30,492.60 and 9,801.10 is: 14,699.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,331.10 : 30,492.60 = 9,801.10 : x
  2. Step 2: Convert to fraction form
    20,331.10/30,492.60 = 9,801.10/x
  3. Step 3: Cross multiply
    20,331.10x = 30,492.60 × 9,801.10
  4. Step 4: Simplify right side
    20,331.10x = 298,861,021.86
  5. Step 5: Solve for x
    x = 298,861,021.86/20,331.10
  6. Step 6: Final answer
    x = 14,699.70

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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.