Home / 21,454.25-32,180.09-12,744.59

Finding the Fourth Proportional to 21,454.25, 32,180.09 and 12,744.59

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Solution

The fourth proportional to 21,454.25, 32,180.09 and 12,744.59 is: 19,116.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,454.25 : 32,180.09 = 12,744.59 : x
  2. Step 2: Convert to fraction form
    21,454.25/32,180.09 = 12,744.59/x
  3. Step 3: Cross multiply
    21,454.25x = 32,180.09 × 12,744.59
  4. Step 4: Simplify right side
    21,454.25x = 410,121,828.59
  5. Step 5: Solve for x
    x = 410,121,828.59/21,454.25
  6. Step 6: Final answer
    x = 19,116.12

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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.