Home / 10,381.43-15,571.64-2,985.83

Finding the Fourth Proportional to 10,381.43, 15,571.64 and 2,985.83

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Solution

The fourth proportional to 10,381.43, 15,571.64 and 2,985.83 is: 4,478.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,381.43 : 15,571.64 = 2,985.83 : x
  2. Step 2: Convert to fraction form
    10,381.43/15,571.64 = 2,985.83/x
  3. Step 3: Cross multiply
    10,381.43x = 15,571.64 × 2,985.83
  4. Step 4: Simplify right side
    10,381.43x = 46,494,177.07
  5. Step 5: Solve for x
    x = 46,494,177.07/10,381.43
  6. Step 6: Final answer
    x = 4,478.59

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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.