Home / 39,718.43-59,586.22-13,422.59

Finding the Fourth Proportional to 39,718.43, 59,586.22 and 13,422.59

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Solution

The fourth proportional to 39,718.43, 59,586.22 and 13,422.59 is: 20,136.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,718.43 : 59,586.22 = 13,422.59 : x
  2. Step 2: Convert to fraction form
    39,718.43/59,586.22 = 13,422.59/x
  3. Step 3: Cross multiply
    39,718.43x = 59,586.22 × 13,422.59
  4. Step 4: Simplify right side
    39,718.43x = 799,801,367.15
  5. Step 5: Solve for x
    x = 799,801,367.15/39,718.43
  6. Step 6: Final answer
    x = 20,136.78

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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.