Home / 21,527.43-32,339.75-12,768.09

Finding the Fourth Proportional to 21,527.43, 32,339.75 and 12,768.09

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Solution

The fourth proportional to 21,527.43, 32,339.75 and 12,768.09 is: 19,180.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,527.43 : 32,339.75 = 12,768.09 : x
  2. Step 2: Convert to fraction form
    21,527.43/32,339.75 = 12,768.09/x
  3. Step 3: Cross multiply
    21,527.43x = 32,339.75 × 12,768.09
  4. Step 4: Simplify right side
    21,527.43x = 412,916,838.58
  5. Step 5: Solve for x
    x = 412,916,838.58/21,527.43
  6. Step 6: Final answer
    x = 19,180.96

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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.