Home / 31,803.35-43,892.11-18,192.67

Finding the Fourth Proportional to 31,803.35, 43,892.11 and 18,192.67

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Solution

The fourth proportional to 31,803.35, 43,892.11 and 18,192.67 is: 25,107.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,803.35 : 43,892.11 = 18,192.67 : x
  2. Step 2: Convert to fraction form
    31,803.35/43,892.11 = 18,192.67/x
  3. Step 3: Cross multiply
    31,803.35x = 43,892.11 × 18,192.67
  4. Step 4: Simplify right side
    31,803.35x = 798,514,585.84
  5. Step 5: Solve for x
    x = 798,514,585.84/31,803.35
  6. Step 6: Final answer
    x = 25,107.88

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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.