Home / 21,448.58-32,153.84-8,112.25

Finding the Fourth Proportional to 21,448.58, 32,153.84 and 8,112.25

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Solution

The fourth proportional to 21,448.58, 32,153.84 and 8,112.25 is: 12,161.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,448.58 : 32,153.84 = 8,112.25 : x
  2. Step 2: Convert to fraction form
    21,448.58/32,153.84 = 8,112.25/x
  3. Step 3: Cross multiply
    21,448.58x = 32,153.84 × 8,112.25
  4. Step 4: Simplify right side
    21,448.58x = 260,839,814.91
  5. Step 5: Solve for x
    x = 260,839,814.91/21,448.58
  6. Step 6: Final answer
    x = 12,161.17

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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.