Home / 20,746.87-31,092.40-11,372.83

Finding the Fourth Proportional to 20,746.87, 31,092.40 and 11,372.83

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Solution

The fourth proportional to 20,746.87, 31,092.40 and 11,372.83 is: 17,043.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,746.87 : 31,092.40 = 11,372.83 : x
  2. Step 2: Convert to fraction form
    20,746.87/31,092.40 = 11,372.83/x
  3. Step 3: Cross multiply
    20,746.87x = 31,092.40 × 11,372.83
  4. Step 4: Simplify right side
    20,746.87x = 353,608,579.49
  5. Step 5: Solve for x
    x = 353,608,579.49/20,746.87
  6. Step 6: Final answer
    x = 17,043.95

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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.