Home / 31,226.40-43,094.01-18,486.90

Finding the Fourth Proportional to 31,226.40, 43,094.01 and 18,486.90

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Solution

The fourth proportional to 31,226.40, 43,094.01 and 18,486.90 is: 25,512.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,226.40 : 43,094.01 = 18,486.90 : x
  2. Step 2: Convert to fraction form
    31,226.40/43,094.01 = 18,486.90/x
  3. Step 3: Cross multiply
    31,226.40x = 43,094.01 × 18,486.90
  4. Step 4: Simplify right side
    31,226.40x = 796,674,653.47
  5. Step 5: Solve for x
    x = 796,674,653.47/31,226.40
  6. Step 6: Final answer
    x = 25,512.86

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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.