Home / 20,956.62-31,406.31-11,582.76

Finding the Fourth Proportional to 20,956.62, 31,406.31 and 11,582.76

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Solution

The fourth proportional to 20,956.62, 31,406.31 and 11,582.76 is: 17,358.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956.62 : 31,406.31 = 11,582.76 : x
  2. Step 2: Convert to fraction form
    20,956.62/31,406.31 = 11,582.76/x
  3. Step 3: Cross multiply
    20,956.62x = 31,406.31 × 11,582.76
  4. Step 4: Simplify right side
    20,956.62x = 363,771,751.22
  5. Step 5: Solve for x
    x = 363,771,751.22/20,956.62
  6. Step 6: Final answer
    x = 17,358.32

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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.