Home / 20,057.13-30,086.39-9,521.72

Finding the Fourth Proportional to 20,057.13, 30,086.39 and 9,521.72

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Solution

The fourth proportional to 20,057.13, 30,086.39 and 9,521.72 is: 14,282.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,057.13 : 30,086.39 = 9,521.72 : x
  2. Step 2: Convert to fraction form
    20,057.13/30,086.39 = 9,521.72/x
  3. Step 3: Cross multiply
    20,057.13x = 30,086.39 × 9,521.72
  4. Step 4: Simplify right side
    20,057.13x = 286,474,181.39
  5. Step 5: Solve for x
    x = 286,474,181.39/20,057.13
  6. Step 6: Final answer
    x = 14,282.91

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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.