Home / 31,658.07-43,679.34-18,734.94

Finding the Fourth Proportional to 31,658.07, 43,679.34 and 18,734.94

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Solution

The fourth proportional to 31,658.07, 43,679.34 and 18,734.94 is: 25,849.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,658.07 : 43,679.34 = 18,734.94 : x
  2. Step 2: Convert to fraction form
    31,658.07/43,679.34 = 18,734.94/x
  3. Step 3: Cross multiply
    31,658.07x = 43,679.34 × 18,734.94
  4. Step 4: Simplify right side
    31,658.07x = 818,329,814.14
  5. Step 5: Solve for x
    x = 818,329,814.14/31,658.07
  6. Step 6: Final answer
    x = 25,849.01

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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.