Home / 47,878.43-71,822.57-18,321.12

Finding the Fourth Proportional to 47,878.43, 71,822.57 and 18,321.12

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Solution

The fourth proportional to 47,878.43, 71,822.57 and 18,321.12 is: 27,483.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,878.43 : 71,822.57 = 18,321.12 : x
  2. Step 2: Convert to fraction form
    47,878.43/71,822.57 = 18,321.12/x
  3. Step 3: Cross multiply
    47,878.43x = 71,822.57 × 18,321.12
  4. Step 4: Simplify right side
    47,878.43x = 1,315,869,832.07
  5. Step 5: Solve for x
    x = 1,315,869,832.07/47,878.43
  6. Step 6: Final answer
    x = 27,483.57

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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.