Home / 20,656.14-30,950.16-11,898.42

Finding the Fourth Proportional to 20,656.14, 30,950.16 and 11,898.42

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Solution

The fourth proportional to 20,656.14, 30,950.16 and 11,898.42 is: 17,828.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,656.14 : 30,950.16 = 11,898.42 : x
  2. Step 2: Convert to fraction form
    20,656.14/30,950.16 = 11,898.42/x
  3. Step 3: Cross multiply
    20,656.14x = 30,950.16 × 11,898.42
  4. Step 4: Simplify right side
    20,656.14x = 368,258,002.75
  5. Step 5: Solve for x
    x = 368,258,002.75/20,656.14
  6. Step 6: Final answer
    x = 17,828.02

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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.