Home / 39,980.86-55,190.01-27,275.98

Finding the Fourth Proportional to 39,980.86, 55,190.01 and 27,275.98

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Solution

The fourth proportional to 39,980.86, 55,190.01 and 27,275.98 is: 37,652.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,980.86 : 55,190.01 = 27,275.98 : x
  2. Step 2: Convert to fraction form
    39,980.86/55,190.01 = 27,275.98/x
  3. Step 3: Cross multiply
    39,980.86x = 55,190.01 × 27,275.98
  4. Step 4: Simplify right side
    39,980.86x = 1,505,361,608.96
  5. Step 5: Solve for x
    x = 1,505,361,608.96/39,980.86
  6. Step 6: Final answer
    x = 37,652.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.