Home / 21,717.14-32,580.50-12,361.56

Finding the Fourth Proportional to 21,717.14, 32,580.50 and 12,361.56

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Solution

The fourth proportional to 21,717.14, 32,580.50 and 12,361.56 is: 18,545.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,717.14 : 32,580.50 = 12,361.56 : x
  2. Step 2: Convert to fraction form
    21,717.14/32,580.50 = 12,361.56/x
  3. Step 3: Cross multiply
    21,717.14x = 32,580.50 × 12,361.56
  4. Step 4: Simplify right side
    21,717.14x = 402,745,805.58
  5. Step 5: Solve for x
    x = 402,745,805.58/21,717.14
  6. Step 6: Final answer
    x = 18,545.07

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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.