Home / 47,580.69-71,372.19-15,991.21

Finding the Fourth Proportional to 47,580.69, 71,372.19 and 15,991.21

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Solution

The fourth proportional to 47,580.69, 71,372.19 and 15,991.21 is: 23,987.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,580.69 : 71,372.19 = 15,991.21 : x
  2. Step 2: Convert to fraction form
    47,580.69/71,372.19 = 15,991.21/x
  3. Step 3: Cross multiply
    47,580.69x = 71,372.19 × 15,991.21
  4. Step 4: Simplify right side
    47,580.69x = 1,141,327,678.45
  5. Step 5: Solve for x
    x = 1,141,327,678.45/47,580.69
  6. Step 6: Final answer
    x = 23,987.20

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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.