Home / 20,954.62-31,403.31-11,580.76

Finding the Fourth Proportional to 20,954.62, 31,403.31 and 11,580.76

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Solution

The fourth proportional to 20,954.62, 31,403.31 and 11,580.76 is: 17,355.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,954.62 : 31,403.31 = 11,580.76 : x
  2. Step 2: Convert to fraction form
    20,954.62/31,403.31 = 11,580.76/x
  3. Step 3: Cross multiply
    20,954.62x = 31,403.31 × 11,580.76
  4. Step 4: Simplify right side
    20,954.62x = 363,674,196.32
  5. Step 5: Solve for x
    x = 363,674,196.32/20,954.62
  6. Step 6: Final answer
    x = 17,355.32

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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.