Home / 31,777.84-43,855.50-18,349.66

Finding the Fourth Proportional to 31,777.84, 43,855.50 and 18,349.66

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Solution

The fourth proportional to 31,777.84, 43,855.50 and 18,349.66 is: 25,323.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,777.84 : 43,855.50 = 18,349.66 : x
  2. Step 2: Convert to fraction form
    31,777.84/43,855.50 = 18,349.66/x
  3. Step 3: Cross multiply
    31,777.84x = 43,855.50 × 18,349.66
  4. Step 4: Simplify right side
    31,777.84x = 804,733,514.13
  5. Step 5: Solve for x
    x = 804,733,514.13/31,777.84
  6. Step 6: Final answer
    x = 25,323.73

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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.