Home / 19,774.45-27,288.74-10,821.96

Finding the Fourth Proportional to 19,774.45, 27,288.74 and 10,821.96

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Solution

The fourth proportional to 19,774.45, 27,288.74 and 10,821.96 is: 14,934.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,774.45 : 27,288.74 = 10,821.96 : x
  2. Step 2: Convert to fraction form
    19,774.45/27,288.74 = 10,821.96/x
  3. Step 3: Cross multiply
    19,774.45x = 27,288.74 × 10,821.96
  4. Step 4: Simplify right side
    19,774.45x = 295,317,652.73
  5. Step 5: Solve for x
    x = 295,317,652.73/19,774.45
  6. Step 6: Final answer
    x = 14,934.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.