Home / 39,659.94-54,739.52-31,029.09

Finding the Fourth Proportional to 39,659.94, 54,739.52 and 31,029.09

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Solution

The fourth proportional to 39,659.94, 54,739.52 and 31,029.09 is: 42,827.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,659.94 : 54,739.52 = 31,029.09 : x
  2. Step 2: Convert to fraction form
    39,659.94/54,739.52 = 31,029.09/x
  3. Step 3: Cross multiply
    39,659.94x = 54,739.52 × 31,029.09
  4. Step 4: Simplify right side
    39,659.94x = 1,698,517,337.49
  5. Step 5: Solve for x
    x = 1,698,517,337.49/39,659.94
  6. Step 6: Final answer
    x = 42,827.03

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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.