Home / 31,741.27-43,799.74-18,991.87

Finding the Fourth Proportional to 31,741.27, 43,799.74 and 18,991.87

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Solution

The fourth proportional to 31,741.27, 43,799.74 and 18,991.87 is: 26,206.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,741.27 : 43,799.74 = 18,991.87 : x
  2. Step 2: Convert to fraction form
    31,741.27/43,799.74 = 18,991.87/x
  3. Step 3: Cross multiply
    31,741.27x = 43,799.74 × 18,991.87
  4. Step 4: Simplify right side
    31,741.27x = 831,838,811.13
  5. Step 5: Solve for x
    x = 831,838,811.13/31,741.27
  6. Step 6: Final answer
    x = 26,206.86

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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.