Home / 20,186.21-30,280.38-6,145.17

Finding the Fourth Proportional to 20,186.21, 30,280.38 and 6,145.17

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Solution

The fourth proportional to 20,186.21, 30,280.38 and 6,145.17 is: 9,218.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186.21 : 30,280.38 = 6,145.17 : x
  2. Step 2: Convert to fraction form
    20,186.21/30,280.38 = 6,145.17/x
  3. Step 3: Cross multiply
    20,186.21x = 30,280.38 × 6,145.17
  4. Step 4: Simplify right side
    20,186.21x = 186,078,082.76
  5. Step 5: Solve for x
    x = 186,078,082.76/20,186.21
  6. Step 6: Final answer
    x = 9,218.08

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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.