Home / 39,431.22-59,124.75-13,121.61

Finding the Fourth Proportional to 39,431.22, 59,124.75 and 13,121.61

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Solution

The fourth proportional to 39,431.22, 59,124.75 and 13,121.61 is: 19,675.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,431.22 : 59,124.75 = 13,121.61 : x
  2. Step 2: Convert to fraction form
    39,431.22/59,124.75 = 13,121.61/x
  3. Step 3: Cross multiply
    39,431.22x = 59,124.75 × 13,121.61
  4. Step 4: Simplify right side
    39,431.22x = 775,811,910.85
  5. Step 5: Solve for x
    x = 775,811,910.85/39,431.22
  6. Step 6: Final answer
    x = 19,675.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.