Home / 31,738.32-43,798.44-18,309.60

Finding the Fourth Proportional to 31,738.32, 43,798.44 and 18,309.60

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Solution

The fourth proportional to 31,738.32, 43,798.44 and 18,309.60 is: 25,266.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,738.32 : 43,798.44 = 18,309.60 : x
  2. Step 2: Convert to fraction form
    31,738.32/43,798.44 = 18,309.60/x
  3. Step 3: Cross multiply
    31,738.32x = 43,798.44 × 18,309.60
  4. Step 4: Simplify right side
    31,738.32x = 801,931,917.02
  5. Step 5: Solve for x
    x = 801,931,917.02/31,738.32
  6. Step 6: Final answer
    x = 25,266.99

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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.