Home / 20,356.10-30,534.15-16,900.10

Finding the Fourth Proportional to 20,356.10, 30,534.15 and 16,900.10

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Solution

The fourth proportional to 20,356.10, 30,534.15 and 16,900.10 is: 25,350.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,356.10 : 30,534.15 = 16,900.10 : x
  2. Step 2: Convert to fraction form
    20,356.10/30,534.15 = 16,900.10/x
  3. Step 3: Cross multiply
    20,356.10x = 30,534.15 × 16,900.10
  4. Step 4: Simplify right side
    20,356.10x = 516,030,188.42
  5. Step 5: Solve for x
    x = 516,030,188.42/20,356.10
  6. Step 6: Final answer
    x = 25,350.15

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Similar ratio
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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.