Home / 31,236.45-43,111.85-18,496.70

Finding the Fourth Proportional to 31,236.45, 43,111.85 and 18,496.70

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Solution

The fourth proportional to 31,236.45, 43,111.85 and 18,496.70 is: 25,528.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,236.45 : 43,111.85 = 18,496.70 : x
  2. Step 2: Convert to fraction form
    31,236.45/43,111.85 = 18,496.70/x
  3. Step 3: Cross multiply
    31,236.45x = 43,111.85 × 18,496.70
  4. Step 4: Simplify right side
    31,236.45x = 797,427,017.43
  5. Step 5: Solve for x
    x = 797,427,017.43/31,236.45
  6. Step 6: Final answer
    x = 25,528.74

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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.