Home / 21,738.74-32,586.05-12,359.38

Finding the Fourth Proportional to 21,738.74, 32,586.05 and 12,359.38

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Solution

The fourth proportional to 21,738.74, 32,586.05 and 12,359.38 is: 18,526.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,738.74 : 32,586.05 = 12,359.38 : x
  2. Step 2: Convert to fraction form
    21,738.74/32,586.05 = 12,359.38/x
  3. Step 3: Cross multiply
    21,738.74x = 32,586.05 × 12,359.38
  4. Step 4: Simplify right side
    21,738.74x = 402,743,374.65
  5. Step 5: Solve for x
    x = 402,743,374.65/21,738.74
  6. Step 6: Final answer
    x = 18,526.53

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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.