Home / 39,947.86-59,911.41-11,861.31

Finding the Fourth Proportional to 39,947.86, 59,911.41 and 11,861.31

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Solution

The fourth proportional to 39,947.86, 59,911.41 and 11,861.31 is: 17,788.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,947.86 : 59,911.41 = 11,861.31 : x
  2. Step 2: Convert to fraction form
    39,947.86/59,911.41 = 11,861.31/x
  3. Step 3: Cross multiply
    39,947.86x = 59,911.41 × 11,861.31
  4. Step 4: Simplify right side
    39,947.86x = 710,627,806.55
  5. Step 5: Solve for x
    x = 710,627,806.55/39,947.86
  6. Step 6: Final answer
    x = 17,788.88

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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.