Home / 27,405.15-41,107.73-21,828.30

Finding the Fourth Proportional to 27,405.15, 41,107.73 and 21,828.30

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Solution

The fourth proportional to 27,405.15, 41,107.73 and 21,828.30 is: 32,742.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,405.15 : 41,107.73 = 21,828.30 : x
  2. Step 2: Convert to fraction form
    27,405.15/41,107.73 = 21,828.30/x
  3. Step 3: Cross multiply
    27,405.15x = 41,107.73 × 21,828.30
  4. Step 4: Simplify right side
    27,405.15x = 897,311,862.76
  5. Step 5: Solve for x
    x = 897,311,862.76/27,405.15
  6. Step 6: Final answer
    x = 32,742.45

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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.